Features: 1. Application: This 263064 PVC push pull valve replacement compatible with FNS Plus and Quad pool and spa D. E. filter models FNSP24, FNSP36, FNSP48, FNSP60, QUAD60, QUAD80, QUAD100, it also compatible with Triton II side mount pool and spa sand filters. 2. Know When to Replace: Valve is Stuck or Hard to Turn: If the handle won’t move or requires excessive force, the internal spider gasket, seals, or piston may be worn or broken. Leaking Water in Multiple Positions: Worn piston O-rings (in push-pull valves) can cause leaks between settings. Cracked or Broken Valve Body: Physical damage, cracks, or warping due to age/sun exposure means the entire valve needs replacement. .
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