Pentair Diffuser O-Ring 3/16" x 4-7/8" | EQ Series Pump | 350037Z Filter Cartridges Frame size: 10

Frame size: 10

but if your feeder model number differs from those listed

Anthony DE filter systems — specifically the Apollo 4000 and Flowmaster 4000 series

Multi-Port Valve

Pentair Diffuser O-Ring 3/16" x 4-7/8" | EQ Series Pump | 350037Z Filter Cartridges Frame size: 10The 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