Pentair EQ Series Diffuser O-RIng (350037Z) lascofittings This dark grey retrofit drain

This dark grey retrofit drain grate provides reliable drainage performance while blending with pool finishes for a clean appearance

sanitation

the system can lose an important part of its treatment capability

Supports dependable debris movement and cleaning coverage

the spa feels more intuitive and polished

Pentair EQ Series Diffuser O-RIng (350037Z) lascofittings This dark grey retrofit drainThe 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