Durable Construction: Features high-grade materials to withstand the thermal and pneumatic stress of heavy duty heating cycles

smoothing out rapid pressure fluctuations that can cause "chatter" in pressure switches

the Watts 3/4 inch relief valve handles significant thermal expansion loads

The manual button ensures the system remains offline until a qualified contractor inspects the unit

BASO H91AA-6 Gas Valve Els PW 17895 Durable Construction: Features high-grade materialsThe BASO H91AA 6 automatic gas valve is a robust, electrically operated shutoff valve engineered for reliable performance across a broad spectrum of gas fired appliances. This 120V gas valve is designed to integrate seamlessly into systems requiring precise gas flow control, responding directly to demand signals from thermostats or other control devices. Compatible with both natural gas and LP gas, it handles pressures up to 0. 5 PSI, making it a