The CMP Backwash Valve Piston Kit 25831-110-100 is an aftermarket replacement designed for Pentair slide valve models, including the 263055, commonly paired with FNS Plus filters. This kit includes the piston shaft assembly necessary to restore the functionality of your pool's backwash valve.

• Direct Replacement:ÊCompatible with Pentair 2-inch Slide Valves, replacing the Pentair 263055 piston shaft.
• Engineered for Performance:ÊWithstands heavy-duty backwashing operations to support efficient water flow management.
• Durable Construction: Built with quality materials for long-lasting reliability in pool and spa environments.
• Seamless Compatibility:ÊDesigned to integrate smoothly with Pentair slide valves for consistent operation.
• Easy Installation: Designed for a straightforward replacement process, minimizing system downtime.

• Pentair FNS Plus Filters:Ê180007, 180008, 180009
• Pentair Push and Pull Slide Backwash Valve Models:Ê263064, 263052, 263053, 263078, 263079
• This backwash valve piston kitÊmay be compatible with many other models as well, please check your filter's manual to ensure this replacement is right for your filter.Ê