Pentair O-Ring, Front Housing | Challenger High Flow | 355329Z Chlorine Neutralizers This product is designed for

This product is designed for use in properly balanced pool water

Before threading the cap or extension back onto your Rainbow feeder

H400FDP Manufacture Date Requirement For units manufactured after September 20

When your Hot Springs

if your old cartridge differs from those figures

Pentair O-Ring, Front Housing | Challenger High Flow | 355329Z Chlorine Neutralizers This product is designed forThe Pentair Front Housing O Ring (355329Z) is the OEM replacement sealing O ring for the Challenger High Flow pump series, preventing water from bypassing the joint between the front housing and the pump body. 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