Pentair Diffuser O-Ring 3/16" x 4-7/8" | EQ Series Pump | 350037Z C8380 Do not pour Power Blue

Do not pour Power Blue Scale Off into your pool (minor dripping is acceptable)

Length 26" Outer Diameter 7" Top Inner Diameter 3" Bottom Inner Diameter 3" Material Point Bonded Pool Filtration Fabric Pleatco Advanced Features

valve positions lose isolation — resulting in flow bypass

Brand Equipment Line Model / Part Number Notes Pentair ETi 250 — ETi Series Pool and Spa Heater ETi-250 — Pentair ETi 250 — ETi Series Pool and Spa Heater ETi250 — Pentair ETi® 400 Heater — ETi Series ETi400 — Compatibility is based on Pentair parts documentation and available OEM records

ideal for rejuvenating body and mind after workouts

Pentair Diffuser O-Ring 3/16" x 4-7/8" | EQ Series Pump | 350037Z C8380 Do not pour Power BlueThe Pentair 350037 is the OEM replacement diffuser O ring for the EQ Series Commercial Plastic Pump, sized 3 16" x 4 7 8". IMPORTANT: LUBRICATION REQUIRED SOLD SEPARATELY Always lubricate this O ring with a silicone based lubricant before installation. We carry the Pentair R172351 Lifeguard Silicone Lubricant the OEM matched product for Pentair equipment. This O ring seals the diffuser assembly within the EQ Series pump, preventing bypass of water