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A properly selected replacement helps restore heating function while supporting a cleaner mounting seal at installation
Helps restore or adapt compatible flow-sensing setups
Hayward in-line back-mount vacuum gauge
or no longer directs water correctly
A filter cartridge helps support water clarity by trapping debris inside a compatible filtration system
Hayward H-Series LP MV Gas Valve (HAXGSV0003) watertestkits A properly selected replacement helpsThe Hayward LP MV gas valve is designed for compatible H Series heater applications where dependable liquid propane fuel regulation is needed. A valve like this is useful because it helps manage gas delivery to the burner system, supporting more controlled combustion and more reliable heater performance. This replacement is especially useful when the original valve is sticking, leaking, regulating poorly, or no longer responding correctly. Replacing