Raypak 55A/105A/105B/155A/185A/R185/185 Gas Valve [LP] [IID] (004306F) pentairletro A check valve helps maintain

A check valve helps maintain one-way flow and protect the ozone side of the system from unwanted backflow

That makes this more than just a trim piece

1-1/2 inch slip union ball valve from Praher Plastics

Three required for full matched replacement in applicable setups

Raypak 55A/105A/105B/155A/185A/R185/185 Gas Valve [LP] [IID] (004306F) pentairletro A check valve helps maintainThe Raypak gas valve is designed for compatible 55A, 105A, 105B, 155A, 185A, R185, and 185 heater applications using LP gas in an IID configuration. A gas valve is useful because it manages how fuel is delivered and controlled within the heater, making it one of the most important operating components in the system. This replacement is especially useful when the original valve is worn, unreliable, or no longer controlling LP flow correctly. Matching