CMP Generic 2" Slide/1-1/2" Backwash Valve Piston Assy (25831-122-100) tecmarkcorp This version is particularly valuable

This version is particularly valuable when you need a valve that aligns with Hayward-style plumbing without introducing extra adaptation work

Useful when diverter action becomes less responsive

A diffuser plate like this is useful because it helps support internal flow management around the pump’s impeller area

Helps maintain more consistent water level automatically

CMP Generic 2" Slide/1-1/2" Backwash Valve Piston Assy (25831-122-100) tecmarkcorp This version is particularly valuableThe CMP generic backwash valve piston assembly is designed for compatible slide valve applications where the internal piston section needs replacement. A piston assembly is useful because it helps control the internal flow path changes needed for normal filtration and backwash use, supporting dependable valve function. This replacement is especially useful when the original piston is worn, scored, sticking, leaking, or no longer sealing correctly.