Hayward Filter O-Ring | GMX400F Aluminum This component is part of

This component is part of the pool’s drain safety assembly

doses and pool volume

This complete OEM kit includes precision-sized LP orifices and required conversion components to ensure proper fuel delivery

Compatibility: Used on select Raypak IID propane heaters

Top-end heater rebuild requires the proper outer adapter

Hayward Filter O-Ring | GMX400F Aluminum This component is part ofWhat This Part Is Used For The Hayward GMX400F O Ring provides a sealing surface for compatible Hayward filter or valve assemblies. It prevents water leaks at connection points. Why This Part Matters A worn or flattened O ring can cause air leaks, water seepage, or pressure loss. Replacing it restores proper sealing and system integrity. Small sealing components play a major role in overall equipment performance. Key Features and Specifications