The BASO Gas Products H15CA-5 Auto Pilot Valve is an automatic gas safety valve designed to control and shut off pilot and main burner gas flow when the pilot flame is extinguished. Featuring 1/2-inch NPT inlet and outlet connections with a 1/4-inch tapping port, it provides reliable gas control in compatible HVAC and heating equipment, including gas-fired furnaces, heaters, and comme... https://www.partshnc.com/h15ca-5-baso-gas-products-12-auto-pilot-vlv-14-tap