The Hayward PVC 3-port diverter valve is designed for compatible plumbing applications where water needs to be directed between multiple lines. A 3-port diverter valve is useful because it helps route water between different plumbing paths, supporting pool, spa, heating, or feature-control functions.This replacement is especially useful when the original valve is leaking, cracked, stiff, or no longer directing flow correctly. Matching the correct 1.5 inch to 2 inch configuration helps preserve intended fit and dependable plumbing performance.The PSV3SDGR is a practical service part when a compatible Hayward plumbing system needs a valve to restore dependable flow-direction control. Hayward PVC 3-port diverter valve 1.5 inch to 2 inch configuration Designed for compatible plumbing applications Useful when the original valve is leaking or difficult to operate Supports cleaner and more dependable flow control