CMP Generic 2" Slide/1-1/2" Backwash Valve Piston Assy (25831-122-100) tecmarkcorp and this Luxury Leisure EZ

and this Luxury Leisure EZ Lifter complete version uses the 3110-03 reference

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

but it would not preserve the original logic of the panel

Matching the correct 1-1/2 inch slip white configuration helps preserve intended fit and dependable return performance

CMP Generic 2" Slide/1-1/2" Backwash Valve Piston Assy (25831-122-100) tecmarkcorp and this Luxury Leisure EZThe 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.