HQPASFY Piston Rod Assembly for Pentair Slide Backwash Valve — Replacement Kit with O-Rings & Lubricant (Fits 273241/261047)

HQPASFY Piston Rod Assembly is a drop-in replacement piston and hardware set designed to restore smooth push-pull operation for Pentair slide backwash valves, enabling reliable switching between filtration and backwash cycles.

If your Pentair slide backwash or spa multiport valve has become stiff, leaks, or fails to hold position, the piston rod assembly is the wear item that most commonly needs replacement. This HQPASFY kit includes the piston rod, spacers, multiple O-rings, lubricant and a handle so you can repair the valve without replacing the entire unit. It fits common Pentair part numbers such as 273241Z, 273241, 261047 and 261165 and is molded from corrosion-resistant plastic for long service life in chlorinated or saltwater pool systems.

How does this piston rod assembly restore valve function?

Replacing a worn piston rod removes play and restores the piston’s ability to travel smoothly inside the slide valve, so the valve seals properly in both filtration and backwash positions. The included O-rings and lubricant help reduce friction and prevent water bypass that causes poor backwashing or filtration interruptions.

• Direct replacement fit for listed Pentair part numbers
• New O-rings and lubricant to ensure a tight seal
• Engineered spacers and handle for correct travel distance

What’s included and why each part matters?

The kit bundles the piston rod plus the small parts that commonly fail: two small O-rings, one larger replacement O-ring, spacers, a handle and a tube of lubricant. Each piece is sized to maintain alignment and sealing inside the slide valve so the assembly performs like new after installation.

• Piston rod — restores smooth linear motion
• O-rings — prevent water leakage and maintain pressure integrity
• Spacers & handle — ensure correct stroke and user control
• Lubricant & manual — simplify installation and extend component life

How easy is installation and what safety steps should I follow?

Installation is straightforward for anyone comfortable working with pool equipment and basic hand tools. Always shut off the pump and relieve system pressure before starting. The kit is designed for simple push-pull reassembly and typically requires only a few minutes to swap the old assembly for the new one.

• Turn off pump and depressurize system before opening valve
• Remove the old piston rod assembly and clean the slide valve bore
• Install new rod, O-rings, spacers; apply supplied lubricant
• Reassemble valve, pressurize system, and test valve positions

Will this part work with my Pentair valve model?

HQPASFY’s piston rod assembly is designed to match the form and function of common Pentair slider/push-pull backwash valve components. It is compatible with several Pentair reference numbers listed in the product description, but verifying fit against your valve’s part number or model before purchasing is recommended.

• Compatible with Pentair slide backwash valves and spa multiport push-pull valves
• Fits reference numbers 273241Z, 273241, 261047, 261165
• Contact product support if you’re unsure about model compatibility

Who this is for: Pool owners, service technicians and maintenance professionals who want a cost-effective repair option instead of replacing an entire valve. If your valve handle feels loose, the unit won’t hold backwash, or you’re seeing water loss during mode changes, this HQPASFY piston rod assembly provides the parts and seals to return reliable push-pull control and extend the life of your Pentair slide backwash valve.