Pentair Diffuser O-Ring 3/16" x 4-7/8" | EQ Series Pump | 350037Z C8380 Length 26" Outer Diameter 7"

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

Tests for: Salinity

valve positions lose isolation — resulting in flow bypass

A worn or cracked O-ring is a common cause of water leaks at filter joints — replacing it restores a watertight seal and returns the filter to proper operating pressure

Pentair Diffuser O-Ring 3/16" x 4-7/8" | EQ Series Pump | 350037Z C8380 Length 26" Outer Diameter 7"The 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