Hayward Filter O-Ring | GMX400F Hammer-Head The AutoPilot PCR0002A Gen II

The AutoPilot PCR0002A Gen II Power Supply is manufactured to AutoPilot specifications to ensure proper fit

Some plumbing adjustment may be required during installation

Ideal for retrofit or new-install projects

helping stabilize suction flow

Includes: 50 lb Bag of Polished Lava Rock

Hayward Filter O-Ring | GMX400F Hammer-Head The AutoPilot PCR0002A Gen IIWhat 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