X0508 4 2026-02-06 0 0001439288 Zurn Elkay Water Solutions Corp ZWS 0001909135 LaValle Jeffrey J. 511 W. FRESHWATER WAY MILWAUKEE WI 53204 0 1 0 0 VP, General Counsel & Sec'y 0 Common Stock 2026-02-06 4 A 0 18407 A 55900 D Common Stock 2026-02-10 4 S 0 6097 51.80 D 49803 D Common Stock 2026-02-10 4 A 0 2334 A 52814 D Common Stock 1813 I By 401(k) Plan Stock Option (right to buy) 33.05 2031-10-05 Common Stock 5578 5578 D Acquisition of shares, including shares received for accrued dividend equivalent rights, for no consideration upon the vesting of performance stock units, based on Zurn Elkay Water Solutions Corporation's performance during three year performance period (January 1, 2023 - December 31, 2025). Shares were sold to satisfy tax withholding obligations and related fees in connection with the vesting of performance stock units and related dividend shares. This transaction was executed in multiple trades at prices ranging from $51.48 to $52.16. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effectuated. Restricted stock unit grant, which vests in three annual installments beginning on the first anniversary of the grant date, assuming continued employment. Includes shares acquired under the Company's Employee Stock Purchase Plan in 2025. Based on information from the trustee of the 401(k) Plan. Option fully vested. Jeffrey J. LaValle 2026-02-10