Pentair EQ Series Diffuser O-RIng (350037Z) vacalert The Hayward gasket is designed

The Hayward gasket is designed for compatible SP3000 and SP3000X pump applications where dependable sealing is needed between related pump components

Replacing a worn or damaged valve assembly with the correct Waterway part can improve service convenience and connection confidence

Supports cleaner replacement matching during service

Basket replacements are among the most practical maintenance parts because the original component often sees repeated handling and exposure over time

The 25913-204 is a practical service part when a compatible plumbing system needs a 3-port diverter valve to restore dependable flow-routing support

Pentair EQ Series Diffuser O-RIng (350037Z) vacalert The Hayward gasket is designedThe 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