Hayward Filter O-Ring | GMX400F Hammer-Head The 605-4370 plunger and cap

The 605-4370 plunger and cap assembly is designed for 1-inch on-off valve configurations

earthy palette that replicates the look of traditional masonry

it's typically integrated into the wheel assembly to ensure even tracking across surfaces

so when it sticks

Hayward Filter O-Ring | GMX400F Hammer-Head The 605-4370 plunger and capWhat 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