Description
The Pentair 355331 Diffuser O-Ring is a genuine OEM replacement component made for SuperFlo VS/VST and Challenger pumps produced after 6/17/19. This O-ring forms a secure, watertight barrier inside the pump diffuser, preventing leaks that can undermine water flow and reduce system efficiency. Manufactured from resilient, chemically resistant rubber, it withstands prolonged contact with treated pool water without losing its sealing properties. As a fundamental part of routine pump upkeep, installing an authentic OEM O-ring like the 355331 ensures a precise fit, sustained pump performance, and uninterrupted water circulation throughout your pool or spa system.
