Pentair Tank Body O-Ring

The Pentair High Flow Manual Air Relief Valve (part number 98209800) is a critical safety and pressure-management component designed for a wide array of Pentair pool and spa filtration systems, including Clean & Clear, Clean & Clear Plus, Predator, and Warrior cartridge and D.E. filters. Molded from a high-strength, chemical-resistant polymer resin, this specialized valve functions as a manual bleed-off mechanism that allows pool operators to safely vent trapped air from the highest apex of the filter tank during system startup. This vital action prevents dangerous internal pressure surges and ensures the pump maintains an optimal, air-free hydraulic flow. Engineered with robust, coarse threads to securely lock into the filter's top dome assembly, the standalone high-flow valve is remarkably compact and lightweight, carrying an individual product and shipping weight of approximately 0.25 pounds (about 4 ounces), making it an easy-to-operate and effortlessly replaceable safeguard for maintaining filtration system stability.