#1MUELLER Mueller Water Products Where Intelligence Meets Infrastructure® Investor Presentation September 2023#2Non-GAAP Financial Measures In an effort to provide investors with additional information regarding the Company's results as determined by accounting principles generally accepted in the United States ("GAAP"), the Company also provides non-GAAP information that management believes is useful to investors. These non-GAAP measures have limitations as analytical tools, and securities analysts, investors and other interested parties should not consider any of these non-GAAP measures in isolation or as a substitute for analysis of the Company's results as reported under GAAP. These non-GAAP measures may not be comparable to similarly titled measures used by other companies. The Company presents adjusted net income, adjusted net income per diluted share, adjusted operating income, adjusted operating margin, adjusted EBITDA and adjusted EBITDA margin as performance measures because management uses these measures to evaluate the Company's underlying performance on a consistent basis across periods and to make decisions about operational strategies. Management also believes these measures are frequently used by securities analysts, investors and other interested parties in the evaluation of the Company's recurring performance. The Company presents net debt and net debt leverage as performance measures because management uses them to evaluate its capital management and financial position, and the investment community commonly uses them as measures of indebtedness. The Company presents free cash flow to assist management and investors in analyzing the Company's ability to generate liquidity from its operating activities. The calculations of these non-GAAP measures and reconciliations to GAAP results are included as an attachment to this presentation, which has been posted online at www.muellerwaterproducts.com. The Company does not reconcile forward-looking non-GAAP measures to the comparable GAAP measures, as permitted by Regulation S-K, as certain items, e.g., expenses related to corporate development activities, transactions, pension expenses/(benefits) and corporate restructuring, may have not yet occurred, are out of the Company's control and/or cannot be reasonably predicted without unreasonable efforts. Additionally, such reconciliation would imply a degree of precision and certainty regarding relevant items that may be confusing to investors. Such items could have a substantial impact on GAAP measures of the Company's financial performance. MUELLER 2#3Forward-Looking Statements This presentation contains certain statements that may be deemed “forward-looking statements" within the meaning of the federal securities laws. All statements that address activities, events or developments that the Company intends, expects, plans, projects, believes or anticipates will or may occur in the future are forward- looking statements, including, without limitation, statements regarding outlooks, projections, forecasts, expectations, commitments, trend descriptions and the ability to capitalize on trends, value creation, Board and committee composition plans, long-term strategies and the execution or acceleration thereof, operational improvements, inventory positions, the benefits of capital investments, financial or operating performance including improving sales growth and driving increased margins, capital allocation and growth strategy plans, the Company's product portfolio positioning and the demand for the Company's products. Forward-looking statements are based on certain assumptions and assessments made by the Company in light of the Company's experience and perception of historical trends, current conditions and expected future developments. Actual results and the timing of events may differ materially from those contemplated by the forward-looking statements due to a number of factors, without limitation, including the future impact of the COVID-19 pandemic on the Company's operations and results, including effects on the financial health of customers (including collections and inventory positions); logistical challenges and supply chain disruptions, geopolitical conditions, or other events; an inability to realize the anticipated benefits from our operational initiatives, including our large capital investments in Chattanooga and Kimball, Tennessee, and Decatur, Illinois, plant closures, and our reorganization and related strategic realignment activities; an inability to attract or retain a skilled and diverse workforce, increased competition related to the workforce and labor markets; an inability to protect the Company's information systems against service interruption, misappropriation of data or breaches of security; failure to comply with personal data protection and privacy laws; cyclical and changing demand in core markets such as municipal spending, residential construction, and natural gas distribution; government monetary or fiscal policies; the impact of adverse weather conditions; the impact of manufacturing and product performance; the impact of wage, commodity and materials price inflation; foreign exchange rate fluctuations; the impact of warranty claims; an inability to successfully resolve significant legal proceedings or government investigations; compliance with environmental, trade and anti-corruption laws and regulations; climate change and legal or regulatory responses thereto; changing regulatory, trade and tariff conditions; the failure to integrate and/or realize any of the anticipated benefits of recent acquisitions or divestitures; an inability to achieve some or all of our Environmental, Social, and Governance goals; and other factors that are described in the section entitled "RISK FACTORS" in Item 1A of the Company's most recent Annual Report on Form 10-K and later filings on Form 10-Q, as applicable. Forward-looking statements do not guarantee future performance and are only as of the date they are made. The Company undertakes no duty to update its forward- looking statements except as required by law. Undue reliance should not be placed on any forward-looking statements. You are advised to review any further disclosures the Company makes on related subjects in subsequent Forms 10-K, 10-Q, 8-K and other reports filed with the U.S. Securities and Exchange Commission. MUELLER 3#4Mueller Water Products at a Glance History Founded more than 165 years ago • Spun off from Walter . Industries in 2006 Listed on NYSE (MWA) (June 2006) Divested U.S. Pipe . (April 2012) • Divested Anvil (January 2017) Acquired Singer Valve (February 2017) Acquired Krausz Industries (December 2018) $1.3B Net Sales (LTM Q3 FY2023) $327.4M Highlights (1) Capital Expenditures (5-Year FY18-FY22) $574.9M Cash Flow from Operations (5-Year FY18-FY22) $306.3M $185.3M Adjusted EBITDA (LTM Q3 FY2023) 14.2% Adjusted EBITDA % of Net Sales (LTM Q3 FY2023) $247.5M Free Cash Flow (5-Year FY18-FY22) 1.7x Rest of World Geography (2) (% of Consolidated Net Sales) Segments (2,3) (% of Consolidated Net Sales) Canada United States Products (2) (% of Consolidated Net Sales) Net Debt (June 30, 2023) Net Debt to Adjusted EBITDA (June 30, 2023) Hydrants & Gate Valves 3,600 11 Manufacturing Facilities . Acquired i20 Water (June 2021) Employees Worldwide 5 R&D Centers Brass Products Water Flow Solutions Water Management Solutions End Markets (2) (% of Consolidated Net Sales) ....Specialty Valves Technology- Enabled Repair 60-65% Repair and replacement of municipal water systems 25-30% Residential construction <10% Natural gas utilities (1) See Appendix for reconciliation of non-GAAP measures to their corresponding GAAP measures. (2) Consolidated net sales Information for geography, segments, products and end markets based on FY2022 information and estimates. (3) Water Flow Solutions includes iron gate valves, specialty valves and service brass products. Water Management Solutions includes fire hydrants, repair and installation, natural gas, metering, leak detection, pressure control and software products. MUELLER 4#5Investment Highlights STRONG COMPETITIVE POSITION WITH BROAD PORTFOLIO OF PRODUCTS AND SOLUTIONS LONG-TERM END MARKET DYNAMICS SUPPORTED BY ACCELERATION OF CHALLENGES FACING WATER INFRASTRUCTURE MODERNIZING MANUFACTURING AND DRIVING OPERATIONAL EXCELLENCE TO DELIVER GROSS MARGIN EXPANSION ACCELERATING PRODUCT DEVELOPMENT AND LEVERAGING STRENGTHS TO INCREASE TECHNOLOGY-ENABLED PRODUCTS STRONG, FLEXIBLE BALANCE SHEET AND GROWING FREE CASH FLOW WITH AMPLE LIQUIDITY Leading brand and municipal market specification positions with large installed base Comprehensive distribution network and strong end-user relationships with end-markets served by limited number of suppliers Low-cost manufacturing operations using lost foam process Favorable market dynamics in municipal and residential end-markets Aging infrastructure accelerating need for investment, estimated at $1.7 trillion according to the American Water Works Association, with $55 billion of new funding included in the federal infrastructure bill to upgrade drinking water and wastewater infrastructure (1) Enhanced operational excellence initiatives delivering ongoing productivity improvements Prioritizing capital investments to modernize manufacturing facilities, equipment and processes to drive margin expansion and continued investment in product development Expanding capabilities for American-made products and advancing sustainability initiatives Potential adoption of technology-enabled products by water utilities to actively diagnose, monitor and control the delivery of drinking water Proprietary fixed leak detection, pipe condition assessment, smart metering and software offerings for utilities to have flexible and scalable platform for infrastructure monitoring Flexible balance sheet with 1.7x net debt leverage and ample liquidity with $303.5 million available Enabling growth through capital investments and acquisitions, while historically returning cash to shareholders through dividends and share repurchases (1) American Water Works Association, Buried No Longer: Confronting America's Water Infrastructure Challenge 2012 MUELLER 5#6Focused on Executing Strategic Initiatives to Grow and Enhance Business Confident growth strategies, capital investments and operational initiatives will enable us to deliver further sales and adjusted EBITDA growth Accelerate New Product Development Through Improved Ideation, Engineering and Commercialization Processes Drive Continuously Toward Operational Excellence and Execute Key Capital Projects Increase Development and Adoption of Sentryx™ Intelligent Infrastructure Testing, Monitoring and Control Platform Develop and Execute Sales Organization Initiatives and Channel Strategies to Deliver Growth Where Intelligence Meets InfrastructureⓇ Mueller is committed to manufacturing innovative products and creating smart solutions that will solve future challenges, whether it's at the source, at the plant, below the ground, on the street or in the cloud. Every day, we help deliver safe, clean drinking water to millions of people. Our Commitment to Sustainability As we look to the future, our commitment to advancing our environmental, social and governance (ESG) goals will remain at the forefront of how we operate our business and positively impact our world. OUR CORE VALUES: RESPECT | INTEGRITY | TRUST | SAFETY | INCLUSION MUELLER 6#7ESG Is Core to What We Do Released in May, our 2022 ESG Report demonstrates progress against our key targets and shows our continued commitment to report transparently and in line with leading frameworks. 2022 ESG Report MUELLER Learn more at www.muellerwaterproducts. com/environmental-social- and-governance SASB STANDARDS יין SUSTAINABLE DEVELOPMENT GOALS TCFD GRI TASK FORCE ON CLIMATE-RELATED FINANCIAL DISCLOSURES • • Environment Social Disclosed index in line with TCFD . recommendations Achieved initial emissions reduction goal and set new target (50% Scope 1 and 2 emissions intensity reduction by 2035 vs. 2022) Continued to progress programs and processes related to emissions, energy, water and waste Used approximately 86% recycled material for our products, making us a net negative producer of waste 2022 ESG Report Highlights 51% Reduction in Scope 1 and Scope 2 emissions intensity against a 2015 baseline 86% Recycled Metal Used to Produce Our Products Established 9 local DE&I councils at U.S. Mueller facilities that drive engagement on DE&I topics Providing enterprise-wide unconscious bias and additional health and safety trainings Supported work/life balance and employee health and wellness Continued to enhance our employee health and safety programs Met community needs through donations and volunteering efforts 21% Products • • Opened our brass foundry for initial production, pouring a stronger alloy that helps address supply chain concerns while providing environmental benefits Used our world-class EchoShoreⓇ technology to help clients save ~1.3 billion gallons of water loss in 2022, primarily through leak detection technology enhancements Continued our strong global research and development programs Governance Maintained robust ESG oversight at the Board level to ensure we follow through on our commitments and continue to deliver value for shareholders Continued our legacy of high ethical standards for employees and suppliers Improved oversight of climate- related risk and opportunities, as highlighted in our TCFD disclosure Introduced a new Human Rights Policy Decrease in Waste Directed to Disposal 56,925 Metric Tons of Recycled Metal used, vs. 22,644 metric tons of waste generated 2.8B Gallons of water loss savings generated for customers by EchoShoreⓇ leak detection since 2020 MUELLER 7#8Products and Markets MUELLER COPEN AL ETT OPER OPEN MAUE#9Strong Position in Broader Water Market • Water-focused company with more than 90% of • · · consolidated net sales associated with water Leading brands and municipal market specifications Large installed base of products used by customers for new construction and repair and replacement Approximately two-thirds of net sales related to repair and replacement activities of utilities Comprehensive distribution network and strong end-user relationships with end-markets served by limited number of suppliers • Focused on driving best in class customer service supported by in-person and virtual training for end customers and channel partners Broad Portfolio of Products and Solutions with Leading Positions in Key Categories (1) Products (2) (% of Consolidated Net Sales) End Markets (2) (% of Consolidated Net Sales) Hydrants & Gate Valves Brass Products Repair Specialty Valves Technology- Enabled 60-65% Repair and replacement of municipal water systems 25-30% Residential construction <10% Natural gas utilities Fire Hydrants Iron Gate Valves Butterfly Valves #1 Product Position #1 Product Position Product #1 #2 Position MUELLER McWane ACIPCO DeZURIK A.Y. McDonald Ford Meter Box Brass Products Product Position (1) Company estimates based on internal analysis and information from trade associations and distributor networks, where available. (2) Consolidated net sales Information for geography, segments, products and end markets based on FY2022 information and estimates. MUELLER 9#10Mueller is Uniquely Positioned to Address Opportunities with Utilities with its Leading Infrastructure Products and Installed Base MUELLER Mueller Water Products MUELLER 10#11Water Utilities Are Facing Many Challenges Implications for Utilities Unrealistic for U.S. water utilities and local governments to bridge the gap between their current capital spending and projected need for capital spending, based on the age and life expectancy of their infrastructure Moving forward the industry will have to use multiple approaches to extend the life of their assets including measured allocation of capital funds, product innovation, predictive maintenance planning, and rate increases • Climate change is reducing both water availability and quality; solutions to retain, treat, and recycle water will need to be incorporated into investment and operating plans Codification of contaminants regulation could accelerate innovation around testing for and removal of pollutants Population Shifts Aging Infrastructure BOD Aging Workforce Digitization Budget Pressures Implications for Mueller • Municipal repair and replacement remains a tailwind More detailed customer segmentation is needed to market targeted points of differentiation to disparate users Connecting infrastructure network to provide both predictive insight and mechanical functionality will enhance value proposition, thereby increasing adoption of products and services • Participating in training of the next generation of utility workers could be a competitive advantage Web-enabled tools are needed to engage new generation of users • Alternative business models likely to become more attractive to utilities Climate Regulation Water Utilities Urbanization MUELLER 11#12U.S. Water Infrastructure Requires Substantial Long-term Investment • Repair & Replacement Market Restoring existing water systems and expanding them to serve a growing population through 2050 will require a $1.7 trillion investment (1) ASCE grade for drinking water infrastructure is C- and grade for wastewater infrastructure is D+ (2) EPA analysis indicates the need to address aging transmission and distribution pipes is accelerating (see chart below); valves and hydrants are generally replaced along with pipe replacement and repair (3) U.S. Water Infrastructure CAPEX and Investment Gap • Spending on Water & Wastewater CAPEX in U.S. is >$50B (4) ASCE estimates that the current annual investment gap expected to increase from $81B to $136B in 2039 (5) Percentage of Replacement Need 2.5% 2.0% Accelerating Need Funding Gap $136B 1.5% Funding Gap 1.0% 0.5% $81B 0.0% CAPEX CAPEX 2000 2010 2020 2030 2040 2050 2060 2070 Year 2019 2039 (1) American Water Works Association, Buried No Longer: Confronting America's Water Infrastructure Challenge 2012 (2) ASCE: 2021 Report Card for America's Infrastructure (3) The EPA Clean Water and Drinking Water Infrastructure Gap Analysis 2002 (4) Bluefield Research 2019, U.S. Municipal Water Infrastructure Forecast Report (5) American Society of Engineers (ASCE): The Economic Benefits of Investing in Water Infrastructure MUELLER 12#13Aging Infrastructure Increasing Water Main Breaks • • Aging of Pipe Infrastructure Average age of water pipes has increased to 45 years in 2020 from 25 years in 1970 (1) 2.2 million miles of underground pipes for drinking water with 240,000 water main breaks per year (2,3) Up to 30% of treated water is lost or unaccounted for in the water system (5) Growing number of states requiring water loss audits (6) Average age of pipe infrastructure, by region (7) 5% 17% 43% 35% 17% 16% 35% 32% 17% 20% 32% 32% 6% 22% 38% System Age, Years <30 31 to 60 61 to 100 >100 Water Main Break Rates Increasing (4) According to a study by Steven Folkman at Utah State University that surveyed nearly 200,000 miles of water pipelines in more than 300 municipalities in the U.S. and Canada, serving more than 14% of the two countries' total population: - Between 2012 and 2018, overall water main break rates increased by 27%, to 14 from 11 breaks/100 miles/year More concerning is that breakage rates of cast iron and asbestos cement pipe which make up 41% of the installed water mains in the U.S. and Canada - have increased by more than 40% over those six years 82% of cast iron pipes are more than 50 years old and experiencing a 46% increase in break rates Smaller utilities have two times more main breaks than large utilities Nationwide, one mile of installed water main serves 308 people The average age of failing water mains is approximately 50 years Over 16% of North America's underground water infrastructure is past its design service life 34% (1) Bluefield Research 2019, Water Industry 4.0 Focus Report. (2) U.S. Environmental Protection Agency, "Drinking Water Infrastructure Needs Survey and Assessment, Sixth Report to Congress," March 2018. (3) EPA Aging Water Infrastructure Research Program. (4) "Water Main Break Rates in the USA and Canada: A Comprehensive Study," March 2018, Steven Folkman at Utah State University, https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1173&context=mae_facpub. (5) Navigant Research. (6) National Resource Defense Council.. (7) Bluefield Research, February 2022, "U.S. Water & Sewer Pipe Network Infrastructure: Market Trends and Forecasts, 2022 - 2030." MUELLER 13#14Funding Water Utilities Infrastructure Repair Water Utilities in North America >50,000 water utilities and >14,000 wastewater utilities in U.S. and Canada (1) Around 4,400 water utilities, or 9% of the total, serve >80% of the estimated population served (>260M) (1) Approximately 14% of the U.S. population served by privately owned water systems, including investor-owned utilities (IOU) (2) Distribution of Water Utilities in U.S. (1) Market Tier (by population served) # Water Utilities % of Total Utilities Estimated Population Served % of Population Served >100,000 448 0.9% 146.9M 46.8% 10,001 100,000 3,960 8.2% 114.4M 36.4% 3,300 10,000 4,940 10.2% 29.1M 9.3% <3,300 39,230 80.7% 23.4M 7.5% • Sources of Funding for U.S. Utilities For U.S. utilities, 96% of funding at state/local government level (3) Majority of utilities have service connection fees and/or capital recovery charges, with median fees of about $7,800, up 22% since 2016 (4) CPI for water and sewerage maintenance increased 4.6% for 12 months ended July 30, 2023, and has historically exceeded CPI for all items and other utilities including natural gas, electricity, and postage (5) U.S. municipal bond issuance declined to $391B in calendar 2022, after two years above $480B, which is down 5% y/y vs. the 10-year average (2012-2022) (6) U.S. Federal government provides incentives for water utility projects such as Drinking Water State Revolving Funds (DWSRF) and Water Infrastructure Finance and Innovation Act (WIFIA) administered by the Environmental Protection Agency (EPA) Infrastructure Investment and Jobs Act ("IIJA” or “Infrastructure Bill"), signed Nov. 15, 2021, includes $55B of new funding dedicated to water, wastewater and stormwater infrastructure (7) Represents highest level of federal spending in inflation-adjusted dollars since the mid-1970s $55B includes $15B for lead service line (LSL) replacements and $10B to help address emerging contaminants (i.e., PFAS) Existing state revolving funds (drinking water and clean water) are primary ways for funding to get allocated to projects Emphasis on directing funds towards small and disadvantaged communities either as grants or forgivable loans Increases domestic procurement requirements, known as “Build America, Buy America" (BABA), from 55% to 75% over 8-years (1) Bluefield Research Total Addressable Market for Water & Wastewater Utilities, June 2023. (2) Bluefield Research 2019, U.S. Private Water Utilities Report. (3) RAND Corporation 2017 Report titled "Not Everything is Broken." (4) American Water Works Association 2021 Water and Wastewater Rate Survey. (5) Bureau of Labor Statistics. (6) Securities Industry and Financial Markets Association (SIFMA) as of August 28, 2023. (7) Bluefield Research, May 2022, "The Infrastructure Investment and Jobs Act: Breaking Down the Water Funding." MUELLER 14#15Need for Digital Water Solutions Expected to Accelerate Aging Infrastructure and Non-Revenue Water Average age of water pipes has increased to 45 years in 2020 from 25 years in 1970 (2) 240,000 water main breaks per year with 27% increase in break rates since 2012 (3,4) Estimated that U.S. water utilities lose 5.5B gallons of drinking water per day due to pipe leakage and main breaks (5) Growing number of states requiring water loss audits (6) Climate Change, Population Growth and Water Scarcity Increased frequency of extreme climate events elevating importance of infrastructure resiliency and water management with 50% of U.S. experiencing drought or abnormally dry conditions (7) • Population growth and migration trends leading to increased demand in suburban/rural areas (1) Water scarcity awareness has increased conservation and use of low-flow appliances pressuring utility budgets, however additional resources will be needed to meet demand Aging Workforce, Consumer Awareness and Digitization Aging workforce and anticipated retirements rated as one of the top challenges facing utilities projected to see significant retirements over the next ten years (8) Increasing consumer awareness and demand for water quality and usage information Double-digit growth expected for emerging loT and analytics solutions in areas like optimization, data integration, and strategic asset management (1) (1) Bluefield Research, June 2022, "The Digital Water Revolution: Global Digital Water Market Forecast, 2022 - 2030." (2) Bluefield Research, 2019, Water Industry 4.0 Focus Report. (3) EPA Aging Water Infrastructure Research Program. "Bluefield projects that total global digital water spend will scale at an 8.8% CAGR through 2030 with approximately 25% of total global digital water spend in the U.S." (1) Bluefield Research, June 2022 (4) "Water Main Break Rates in the USA and Canada: A Comprehensive Study," March 2018, Steven Folkman at Utah State University. "Between 2012 and 2018, overall water main break rates increased by 27% from 11.0 to 14.0 breaks/(100 miles)/year. (5) Bluefield Research, February 2022, "U.S. Water & Sewer Pipe Network Infrastructure: Market Trends and Forecasts, 2022 - 2030." (6) National Resource Defense Council. (7) U.S. Drought Monitor as of August 22, 2023 (includes contiguous 48 states). (8) American Water Works Association, "2022 State of the Water Industry Report." MUELLER 15#16Broad-line of Connected Products that "Close the Loop" with Water Network Administrators & Assets Currently have a number of products addressing these categories, including Echologics' pipe condition assessment services and fixed leak detection solutions, advanced meters and communication equipment, smart hydrants, pressure and water quality monitors, and most recently, our Sentryx™ software platform $ Monitor Drive insights to inform decision-making process Control Automatic control of network assets & mobile workforce Manage Data from multiple devices feeds machine learning models to create actionable insights Optimize Data Analytics clulo Leak Detection Pressure Management Current Product Offerings TM Remote Flushing Sentryx™ Pressure Monitoring & Control SENTRYX Water Intelligence Platform A digital services platform for water utilities to monitor, operate and monetize water distribution networks. Extend Asset Life. Optimize Metering & Flow Water and Prioritize Expenditures. Measurement Quality Mobile Workforce Management Acoustic Fixed Leak Detection & Pipe Condition Assessment Water Quality Monitoring AMR, AMI, Remote Disconnect Meters, Communications MUELLER 16#17Large Capital Projects • Expect capital expenditures as a percentage of consolidated net sales to decrease to less than 4% after the completion of the new brass foundry in Decatur, IL • Three large capital projects expected to account for total capital spending around $150M and drive approximately $30M of annualized incremental gross profit from cost savings and increased sales, after all are complete and at full run rate. Benefits include accelerating product development, driving operational efficiencies, reducing duplicative expenses, increasing revenue, expanding capabilities for American-made products and advancing our sustainability environmental initiatives Large Valve Foundry Brass Foundry Specialty Valve Manufacturing • Location: Chattanooga, TN • Status: Construction completed with production volumes ramping up • Benefits: Expands domestic manufacturing capabilities and leverages additive manufacturing technologies for large gate and specialty valves to address anticipated increase in demand for larger valve sizes and "Build America, Buy America" products • Location: Decatur, IL Status: Plant production ramp-up in 2023/2024 (1) Benefits: Replacing century-old plant with new state-of- the-art facility, using a new lead-free brass alloy, to increase capacity, expand product development capabilities, help achieve sustainability goals with lower energy usage, reduced waste and enhanced safety (1) Represents the timing of full project completion and not the timing of full annualized benefit from efficiencies and sales from new products. • Location: Kimball, TN • Status: Plant consolidation and construction complete with product volumes ramping up Benefits: Consolidating multiple manufacturing facilities for specialty valves and knife gates into one location while also expanding domestic manufacturing capabilities to address anticipated increase in demand for "Build America, Buy America" products MUELLER 17#18MUELLER Financial Performance AL COPEN ETT ONDER OPEN MAUE#19Q3 FY2023 Consolidated Results (1,2) Net Sales ($M) Gross Profit ($M) % of Net Sales Adj. EBITDA ($M) % of Net Sales -5.9% y/y -60 bps Adj. Net Income per Diluted share +1.8% y/y -2.0% y/y +110 bps $333.2 $326.6 $98.3 $100.1 $57.8 $54.4 $0.19 29.5% 30.6% 17.3% 16.7% -5.3% y/y $0.18 Q3 FY2022 Q3 FY2023 • Decrease primarily due to lower volumes at Water Flow Solutions partially offset by higher pricing in both segments across most of our product lines and volume growth at Water Management Solutions • Increased net sales 28.6% at Water Management Solutions, which more than offset 23.4% net sales decrease at Water Flow Solutions Q3 FY2022 Q3 FY2023 Gross margin decreased 30 bps., excluding the $4.5M warranty accrual charge in the prior year quarter • Decrease primarily due to lower volumes at Water Flow Solutions, unfavorable manufacturing performance and higher costs associated with inflation, which more than offset benefits from higher pricing and higher volumes at Water Management Solutions Q3 FY2022 Q3 FY2023 Decreased $3.4M as benefits from higher pricing were more than offset by the decrease in volumes, unfavorable manufacturing performance and increased costs associated with inflation LTM adjusted EBITDA was $185.3M, or 14.2% of net sales Incurred $0.9M of pension expense other than service during the quarter compared with a benefit of $0.9M in the prior year quarter Q3 FY2022 Q3 FY2023 Adjusted net income per diluted share of $0.18 decreased 5.3% compared with $0.19 in the prior year Net interest expense declined $0.4M to $3.8M primarily due to higher interest income Effective tax rate was 20.7% compared with 21.1% in prior year (1) Provided with Q3FY23 earnings press release and presentation on August 3 & 4, 2023. (2) See Appendix for reconciliation of non-GAAP measures to their corresponding GAAP measures. MUELLER 19#20Full-Year Fiscal 2023 Outlook* • Revising our annual guidance based on current expectations for channel inventory normalization, anticipated brass production levels and project order rates Anticipate double-digit year-over-year decrease in volumes • Short-cycle backlog close to normalized, except for service brass products Anticipate consolidated net sales y/y growth flat to down 2% and adjusted EBITDA y/y growth flat to down 5% • Annual adjusted EBITDA guidance includes $7.7M headwind from higher pension expense other than service, excluded from adjusted operating income • Expect working capital improvements relative to 2022 to drive improved free cash flow for the full year primarily driven by opportunities to improve inventory levels. Full-Year FY2023 Outlook Metrics* Consolidated Net Sales y/y Growth -2% to 0% -5% to 0% Adjusted EBITDA* y/y Growth Total SG&A Expenses Net Interest Expense Effective Income Tax Rate $246M to $248M $15M to $16M 23% to 24% Depreciation and Amortization $62M to $63M Capital Expenditures $50M to $55M Free Cash Flow % of Adjusted Net Income >30% * Provided with Q3FY23 earnings press release on August 3, 2023. * Adjusted EBITDA includes headwind from pension expense (benefit) other than service of $7.7M increase vs. prior year ($3.8M expense vs. $3.9M benefit in the prior year). MUELLER 20#21Strong Balance Sheet and Liquidity Ample capacity to support our strategic priorities, including acquisitions Credit Rating Debt Structure Net Debt Leverage & Liquidity • Moody's: Ba1 Corporate Rating, Ba1 Notes Rating, Stable Outlook S&P: BB Corporate and Notes Ratings, Stable Outlook • • $450M of 4.0% Senior Notes (mature June 2029) Asset based lending agreement ("ABL") provides up to $175M revolving credit facility subject to borrowing base (SOFR + 10 bps. + 200 to 225 bps.) with none outstanding (matures July 2025) $306.3M net debt with total debt of $447.5M and total cash of $141.2M (1) Net debt leverage 1.7x at June 30, 2023 FYE $ in millions $500 Debt Maturities $400 $300 No debt financing repayments prior to June 2029 $450 $200 $100 • No debt financing maturities prior to June 2029 $303.5M of total liquidity including $162.3M of excess availability under the ABL, based on data as of June 30, 2023 $0 FY23 FY24 FY25 FY26 FY27 FY28 FY29 No financial maintenance covenants on 4.0% Senior Notes Financial Covenants ABL not subject to any financial maintenance covenants unless excess availability is less than the greater of $17.5M and 10% of the Loan Cap; consolidated Fixed Charge Ratio permitted to be <1x unless threshold is triggered (1) 4.0% Senior Notes include $4.1M of deferred financing costs. MUELLER 21#22Balanced and Disciplined Capital Allocation Capital Allocation Priorities Strong balance sheet, liquidity and cash flow supporting our strategies Maintaining balanced approach to capital allocation to strengthen and grow the business through capital investments and bolt-on acquisitions Continuing to return cash to our shareholders, primarily through our ongoing quarterly dividend - Paid quarterly dividend since becoming a publicly- traded company - Increased quarterly dividend 7 times since FY15 - Allocated $35M to share repurchases in FY22 with $100M remaining authorization on our share repurchase program as of June 30, 2023 Cash Allocation Over Past 5 Years* $256M to Shareholders - $166M dividends - $90M share repurchases Shareholders 31% Strategic Investments* 60% Balance Sheet* 9% $493M to Strategic Investments - $328M capital expenditures - $165M acquisitions * 5-year period includes FY18, FY19, FY20, FY21, FY22; Strategic Investments includes consolidated capital expenditures and cash paid for acquisitions of Krausz Industries, Pratt Industrial JV and i20 Water (excludes proceeds from sales of assets); Balance Sheet includes debt retirement and pension plan payments ($2M to exit Canadian and multiemployer plans) and includes $22M payment for Walter Tax Settlement). MUELLER 22#23Investment Highlights STRONG COMPETITIVE POSITION WITH BROAD PORTFOLIO OF PRODUCTS AND SOLUTIONS LONG-TERM END MARKET DYNAMICS SUPPORTED BY ACCELERATION OF CHALLENGES FACING WATER INFRASTRUCTURE MODERNIZING MANUFACTURING AND DRIVING OPERATIONAL EXCELLENCE TO DELIVER GROSS MARGIN EXPANSION ACCELERATING PRODUCT DEVELOPMENT AND LEVERAGING STRENGTHS TO INCREASE TECHNOLOGY-ENABLED PRODUCTS STRONG, FLEXIBLE BALANCE SHEET AND GROWING FREE CASH FLOW WITH AMPLE LIQUIDITY MUELLER 23#24Supplemental Data MUELLER COPEN AL ETT OPER OPEN MAUE#25Historical Financial Performance • Over last five years, delivered net sales and adjusted EBITDA CAGRS of 8.6% and 3.5%, respectively • Prior to pandemic, delivered net sales and adjusted EBITDA CAGRS of 6.5% and 8.3%, respectively Consolidated Net Sales $ in millions Consolidated Adjusted EBITDA (1) $ in millions $1,400 $300 $1,247 $1,200 $1,111 $250 $1,000 $916 $968 $964 $198 $204 $801 $826 $200 $191 $195 $180 $800 $600 6.5% Pre-Pandemic CAGR $156 $164 $150 8.3% Pre-Pandemic CAGR $400 8.6% 5-Year CAGR $100 3.5% 5-Year CAGR $200 $50 $0 $0 FY16 FY17 FY18 FY19 FY20 FY21 FY22 FY16 FY17 FY18 FY19 FY20 FY21 FY22 NOTE: See SEC Filings for Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures. (1) Adjusted EBITDA excludes other charges of $23.8M in FY16, $21.2M in FY17, $19.7M in FY18, $43.3M in FY19, $13.2M in FY20, $25.7M in FY21 and $18.5M in FY22. MUELLER 25#26Free Cash Flow • Increased net cash provided by operating activities for YTD Q3 FY2023 by $32.0M to $52.5M compared with prior-year period - Increase driven by improvements in working capital in Q3 Inventories decreased sequentially in Q3 to $312.7M, which is $61.8M, or 24.6%, higher than Q3 FY2022 Invested $32.4M in capital expenditures for YTD Q3 FY2023, $4.3M lower compared with prior-year period • Increased free cash flow $36.3M to $20.1M for YTD Q3 FY2023 compared with prior-year period $60.0 $52.5 $50.0 $40.0 $30.0 $20.5 $ in Millions $20.0 $32.4 $20.1 $10.0 $36.7 $0.0 -$10.0 -$16.2 - Driven by increase in cash provided by operating activities and lower capital expenditures -$20.0 YTD Q3 FY2022 YTD Q3 FY2023 Did not repurchase any common stock in Q3 FY2023, and as of June 30, 2023, had $100.0 million remaining under share repurchase authorization (1) Average Net Working Capital defined as the average of Net Receivables + Net Inventories - Accounts Payable for last 5 quarters. Capital expenditures Free cash flow MUELLER 26#27Strong Balance Sheet with Significant Flexibility • Reduced debt by $1.1B since March 31, 2006 and $650M since September 30, 2008 • Total debt of $447.5M and total cash of $141.2M leading to net debt leverage of 1.7x at June 30, 2023 • $303.5M of total liquidity including $162.3M of excess availability under the ABL, based on June 30, 2023 data Capital structure and net leverage position provide flexibility to support capital investments, quarterly dividend and acquisitions $1,800 Total Debt $ in millions $1,549 $1,600 $1,400 $1,200 $1,127 $1,101 $1,096 Reduced debt by $1.1 billion $1,000 $800 $600 $740 $692 $678 $623 $601 $541 $489 $484 $481 $445 $446 $448 $447 $447 $448 $400 $200 $0 Mar-06 FY06 FY07 FY08 FY09 FY10 FY11 FY12 FY13 " FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21 FY22 Q3 FY23 MUELLER 27#28Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures (UNAUDITED) Net sales Water Flow Solutions $ 150.1 Three months ended June 30, 2023 Water Management Solutions Corporate (dollars in millions, except per share amounts) $ 176.5 $ Consolidated $ 326.6 Gross profit Selling, general and administrative expenses $ 33.6 $ 66.5 $ $ 100.1 20.9 26.5 13.2 60.6 Strategic reorganization and other charges (1) 0.1 1.0 2.8 3.9 Operating income (loss) $ 12.6 $ 39.0 $ (16.0) $ 35.6 Operating margin Capital expenditures Reconciliation of non-GAAP to GAAP performance measures: Net income Strategic reorganization and other charges (1) Income tax benefit of adjusting items Adjusted net income Weighted average diluted shares outstanding Adjusted net income per diluted share (1) Strategic reorganization and other charges includes severance and certain transaction-related expenses. 8.4 % 22.1 % 10.9 % $ 7.5 $ 4.4 $ $ 11.9 $ 24.5 3.9 (0.8) $ 27.6 157.2 $ 0.18 MUELLER 28#29Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures (UNAUDITED) Three months ended June 30, 2023 Water Flow Solutions Water Management Solutions Corporate Consolidated (dollars in millions, except per share amounts) Net income Income tax expense (2) Interest expense, net (2) Pension expense other than service (2) Operating income (loss) Adjusted operating income (loss) Pension expense other than service Depreciation and amortization Adjusted EBITDA Adjusted operating margin Adjusted EBITDA margin Adjusted EBITDA $ 24.5 6.4 3.8 0.9 $ Strategic reorganization and other charges (1) 12.6 0.1 $ 12.7 39.0 1.0 40.0 $ (16.0) 35.6 2.8 3.9 (13.2) 39.5 (0.9) (0.9) 8.2 $ 20.9 $ 7.6 47.6 15.8 $ (14.1) $ 54.4 8.5 % 13.9% 22.7 % 27.0% 12.1 % 16.7% $ 20.9 $ Three prior quarters' adjusted EBITDA Trailing twelve months' adjusted EBITDA Reconciliation of net debt to total debt (end of period): Current portion of long term debt 82.9 $ 103.8 $ 47.6 88.1 135.7 $ (14.1) $ 54.4 (40.1) 130.9 $ (54.2) $ 185.3 Long-term debt Total debt Less cash and cash equivalents Net debt Net debt leverage (net debt divided by trailing twelve months' adjusted EBITDA) Reconciliation of free cash flow to net cash provided by operating activities: Net cash provided by operating activities Less capital expenditures Free cash flow (1) Strategic reorganization and other charges includes severance and certain transaction-related expenses. (2) The Company does not allocate interest, income taxes or pension benefit (expense) other than service to its segments. $ 0.8 446.7 447.5 141.2 $ 306.3 1.7x $ 74.7 11.9 $ 62.8 MUELLER 29#30Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures (UNAUDITED) Net sales Three months ended June 30, 2022 Water Flow Solutions Water Management Solutions Corporate Consolidated (dollars in millions, except per share amounts) $ 195.9 $ 137.3 $ $ 333.2 Gross profit Selling, general and administrative expenses $ 60.8 $ 37.5 $ $ 98.3 22.7 25.5 12.6 60.8 Strategic reorganization and other charges (1) 0.6 0.6 Operating income (loss) $ 38.1 $ 12.0 $ (13.2) $ 36.9 Operating margin Capital expenditures Reconciliation of non-GAAP to GAAP performance measures: Net income Warranty charge (2) Strategic reorganization and other charges (1) Income tax benefit of adjusting items Adjusted net income Weighted average diluted shares outstanding Adjusted net income per diluted share 19.4 % 8.7 % 11.1 % $ 8.1 $ 2.6 $ $ 10.7 (1) Strategic reorganization and other charges includes charges related to the closure of our facilities in Aurora, Illinois and Surrey, British Columbia, Canada. (2) The Company recorded a charge of $4.5 million in connection with its warranty obligations. $ 26.5 4.5 0.6 (1.1) $ 30.5 157.6 $ 0.19 MUELLER 30#31Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures (UNAUDITED) Water Flow Solutions Three months ended June 30, 2022 Water Management Solutions Corporate Consolidated (dollars in millions, except per share amounts) Net income Income tax expense (3) Interest expense, net (3) Pension benefit other than service (3) $ 26.5 7.1 4.2 (0.9) Operating income (loss) $ 38.1 $ Warranty charge (2) 12.0 4.5 $ (13.2) 36.9 4.5 Strategic reorganization and other charges (1) 0.6 0.6 Adjusted operating income (loss) 38.1 16.5 (12.6) 42.0 Pension benefit other than service (3) 0.9 0.9 Depreciation and amortization Adjusted EBITDA Adjusted operating margin Adjusted EBITDA margin Adjusted EBITDA Three prior quarters' adjusted EBITDA $ 7.6 45.7 $ 7.2 23.7 0.1 14.9 $ (11.6) $ 57.8 19.4 % 23.3% 12.0% 12.6 % 17.3 % 17.3 % $ 45.7 $ 23.7 $ (11.6) $ 57.8 117.2 59.6 (33.1) 143.7 $ 162.9 $ 83.3 $ (44.7) $ 201.5 Trailing twelve months' adjusted EBITDA Reconciliation of net debt to total debt (end of period): Current portion of long term debt Long-term debt Total debt Less cash and cash equivalents Net debt Net debt leverage (net debt divided by trailing twelve months' adjusted EBITDA) Reconciliation of free cash flow to net cash provided by operating activities: Net cash provided by operating activities Less capital expenditures Free cash flow Strategic reorganization and other charges includes charges related to the closure of our facilities in Aurora, Illinois and Surrey, British Columbia, Canada. The Company recorded a charge of $4.5 million in connection with its warranty obligations. (1) (2) (3) The Company does not allocate interest, income taxes or pension benefit (expense) other than service to its segments. $ 0.9 446.1 447.0 154.9 $ 292.1 1.4x $ 19.7 10.7 $ 9.0 MUELLER 31#32Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures (UNAUDITED) Net sales Water Flow Solutions Nine months ended June 30, 2023 Water Management Solutions Corporate Consolidated (dollars in millions, except per share amounts) $ 472.9 $ 501.4 $ $ 974.3 Gross profit $ 117.4 $ 173.7 $ $ 291.1 Selling, general and administrative expenses 65.3 82.2 40.2 187.7 Strategic reorganization and other charges (benefits) (1) 0.1 1.2 (0.4) 0.9 Operating income (loss) $ 52.0 $ 90.3 $ (39.8) $ 102.5 Operating margin Capital expenditures Reconciliation of non-GAAP to GAAP performance measures: Net income Strategic reorganization and other charges (benefits) (1) Income tax benefit of adjusting items Adjusted net income Weighted average diluted shares outstanding Adjusted net income per diluted share 11.0 % 18.0 % $ 23.1 $ 9.3 $ 10.5 % +A $ 32.4 $ 68.3 0.9 (0.2) $ 69.0 156.8 $ 0.44 (1) Strategic reorganization and Strategic reorganization and other charges (benefits) includes severance and certain transaction-related expenses partially offset by a gain on the sale of our facility in Aurora, Illinois. MUELLER 32#33Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures (UNAUDITED) Water Flow Solutions Nine months ended June 30, 2023 Water Management Solutions Corporate (dollars in millions, except per share amounts) Consolidated Net income Income tax expense (2) $ 68.3 20.0 Interest expense, net (2) 11.4 Pension expense other than service (2) 2.8 Operating income (loss) $ Strategic reorganization and other charges (benefits) (1) 52.0 0.1 $ 90.3 $ (39.8) 102.5 1.2 (0.4) 0.9 Adjusted operating income (loss) 52.1 91.5 (40.2) 103.4 Pension benefit other than service Depreciation and amortization Adjusted EBITDA (2.8) (2.8) 23.7 22.3 0.1 46.1 $ 75.8 $ 113.8 $ (42.9) $ 146.7 Adjusted operating margin Adjusted EBITDA margin Reconciliation of free cash flow to net cash provided by operating activities: Net cash provided by operating activities Less capital expenditures Free cash flow 11.0 % 16.0 % 18.2 % 22.7 % 10.6 % 15.1 % $ 52.5 32.4 $ 20.1 (1) Strategic reorganization and Strategic reorganization and other charges (benefits) includes severance and certain transaction-related expenses partially offset by a gain on the sale of our facility in Aurora, Illinois. (2) The Company does not allocate interest, income taxes or pension benefit (expense) other than service to its segments. MUELLER 33#34Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures (UNAUDITED) Net sales Nine months ended June 30, 2022 Water Flow Solutions Water Management Solutions Corporate Consolidated (dollars in millions, except per share amounts) $ 534.7 $ 381.3 $ $ 916.0 Gross profit $ Selling, general and administrative expenses 169.9 65.1 $ 108.8 $ $ 278.7 73.5 36.5 175.1 Strategic reorganization and other charges (1) 0.2 3.4 3.6 Operating income (loss) $ 104.8 $ 35.1 $ (39.9) $ 100.0 Operating margin Capital expenditures Reconciliation of non-GAAP to GAAP performance measures: Net income Warranty charge (2) Strategic reorganization and other charges (1) Income tax benefit of adjusting items Adjusted net income Weighted average diluted shares outstanding Adjusted net income per diluted share 19.6 % 9.2 % $ 29.6 $ 7.1 $ (1) Strategic reorganization and other charges includes expenses associated with the Albertville tragedy and restructuring activities. (2) The Company recorded a charge of $4.5 million in connection with its warranty obligations. 10.9 % 36.7 $ 69.5 4.5 3.6 (1.8) $ 75.8 158.3 EA $ 0.48 MUELLER 34#35Segment Results and Reconciliation of Non-GAAP to GAAP Performance Measures (UNAUDITED) สล (1) (2) (3) Net income Income tax expense (3) Interest expense, net (3) Pension benefit other than service (3) Operating income (loss) Warranty charge (2) Strategic reorganization and other charges (1) Adjusted operating income (loss) Pension benefit other than service Depreciation and amortization Adjusted EBITDA Adjusted operating margin Adjusted EBITDA margin Reconciliation of free cash flow to net cash provided by operating activities: Net cash provided by operating activities Less capital expenditures Free cash flow Water Flow Solutions Nine months ended June 30, 2022 Water Management Solutions Corporate (dollars in millions, except per share amounts) Consolidated $ 69.5 20.4 13.0 (2.9) $ 104.8 $ 35.1 $ (39.9) 100.0 4.5 4.5 0.2 3.4 3.6 104.8 39.8 (36.5) 108.1 2.9 2.9 $ 22.5 127.3 22.2 0.2 44.9 $ 62.0 $ (33.4) $ 155.9 19.6% 23.8 % 10.4 % 16.3 % Strategic reorganization and other charges includes expenses associated with the Albertville tragedy and restructuring activities. The Company recorded a charge of $4.5 million in connection with its warranty obligations. The Company does not allocate interest, income taxes or pension benefit (expense) other than service to its segments. 11.8% 17.0 % $ 20.5 36.7 $ (16.2) MUELLER 35