Pentair PacFab 2" Slide/1-1/2" Backwash Valve Piston Assembly (273241Z) valterraproducts This Hayward SwimClear/XStream air relief

This Hayward SwimClear/XStream air relief with O-ring replaces worn or leaking relief hardware on compatible cartridge filter systems

while the directional format helps support a more tailored jet experience

Installed in the right setup

Helps maintain one-way flow in supported plumbing systems

Pentair PacFab 2" Slide/1-1/2" Backwash Valve Piston Assembly (273241Z) valterraproducts This Hayward SwimClear/XStream air reliefPush 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,