Pentair PacFab 2" Slide/1-1/2" Backwash Valve Piston Assembly (273241Z) topsides and correctly aligned

and correctly aligned

or failing

50VA applications where the original transformer has failed or become unreliable

Waterway 1" Top Access Air Control [6-Spoke Black] (660-3511) is a practical replacement component from Waterway Plastics designed for pool and spa service applications where the right fit and dependable function matter

Replacing the original air tube can be a practical way to extend the service life of the overall unit without replacing larger filter components

Pentair PacFab 2" Slide/1-1/2" Backwash Valve Piston Assembly (273241Z) topsides and correctly alignedPush pull backwash valves rely on the piston assembly to shift water flow between filtration and backwash paths. This replacement piston assembly is designed for compatible PacFab 2 inch slide and 1 1 2 inch backwash valve applications, helping restore movement when the original part is worn or leaking. Replacement piston assembly for select PacFab backwash valves Supports filter and backwash flow control Useful when the slide action becomes stiff,