Pentair EQ Series Diffuser O-RIng (350037Z) onoffvalves or worn from long use

or worn from long use

and this Darlly cartridge is designed for compatible applications referencing FC-2969

This replacement is especially useful when the original adapter is corroded

poor sealing

A Wonder Brush helps a compatible robotic cleaner maintain surface contact and improve scrubbing action on pool surfaces

Pentair EQ Series Diffuser O-RIng (350037Z) onoffvalves or worn from long useThe Pentair 350037Z diffuser O ring is designed for compatible EQ Series pump applications where the diffuser sealing ring needs replacement. An O ring like this is useful because it helps seal the diffuser area within the wet end assembly, supporting cleaner internal fit and more dependable pump reassembly. Replacement is often needed when the original O ring is flattened, cut, hardened, or no longer dependable after disassembly. Installing the