SW-26-130 | Swimables Replacement for Pentair Backwash Valve Piston Assembly | 51013811 | SW-26-130

The Swimables Replacement for Pentair Backwash Valve Piston Assembly SW-26-130 with O-Ring is a compatible replacement for Pentair 51013811, designed for select Pentair push-pull and slide backwash valves. This complete piston assembly restores proper valve operation by controlling internal water routing during both filtration and backwash cycles. Commonly used in compatible Pentair 2 inch push-pull slide valve assemblies including 263064 and 50290211 applications, it replaces worn, leaking, or sticking piston assemblies that can affect valve performance. The assembly includes the piston stem and handle-style operating shaft configuration for straightforward installation. Constructed from durable pool-grade materials, the SW-26-130 is built to withstand repeated valve cycling, filter pressure, and chemical exposure.

Highlights

• Replaces Pentair 51013811: Compatible replacement for Pentair valve stem and piston assembly 51013811.
• Fits Select Push-Pull Backwash Valves: Used in many Pentair 2 inch slide valve assemblies including 263064 and 50290211.
• Restores Smooth Valve Operation: Helps correct sticking, leaking, and difficult backwash valve movement.
• Complete Piston and Stem Assembly: Includes full internal piston shaft configuration for replacement.
• Durable Pool-Grade Build: Designed for repeated cycling, pressure, and chemical exposure.