Pentair Piston Assembly [Slide Valve, Push-Pull Kit] (263055)

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This piston assembly is built for compatible Pentair slide valve and push-pull valve service. Push-pull valves rely on a smooth-moving piston to shift flow between filter and backw ash functions, and wear in this area can lead to leaks, hard operation, poor sealing, or incomplete valve movement.Replacing the piston assembly helps restore controlled valve action without replacing the full valve body. It is useful during backwash valve rebuilds, especially when handles, seals, or internal surfaces have been inspected and the piston is the worn component. A proper piston repair can improve backwashing reliability, reduce bypass issues, and support smoother maintenance cycles. Show more