[COMPATIBLE]: Inlet thread: Female M10*1 (0.394 inch), Outlet thread: 7/16 inch-24UNF thread (0.429 inch), Gas valve on knob with 8mm spindle shaft, Pilot burner connection: M8*1 (Valve is for low pressure only). Control valve and coupling suitable for propane heaters with thermoelectric safety, works with propane patio heaters, standing patio heaters, glass tube tower heaters, table top propane heaters, foldable patio heaters. Not suitable for use with natural gas heaters. The propane valves are made of high-quality brass with robust construction for safety and durability. Inlet thread: Female M10*1 (0.394 inch) Outlet thread: 7/16 inch-24UNF thread (0.429 inch). Thermocouple with high-quality solid brass material and high-temperature protective sleeve. Thermocouple wire total 350mm. Pilot burner connection: M8*1 (Valve is for low pressure only). Bakelite knob D-shaft 8mm, made of ABS material, solid structure, durable. FD4 rocker switch for low current, gas R less than or equal to 10m. Patio heater, wide compatibility. This propane control safety valve is made of high-quality brass material for durability. NOTE! 1. Please check if the interface of your heating equipment matches our product before purchasing, as the product is not universal, heating equipment has different models of interfaces. 2. Make sure the installation position of each part is correct during installation. 3. Make sure the thermocouple is properly connected to the rocker switch or valve. 4. If you release the knob, the gas valve will close again. Make sure the thermocouple is always heated by the flame. Turn on the gas and press the valve for 5-10 seconds until the thermocouple probe heats up. Color: Photo color. Material: brass, plastic. Size: 11.5 cm. Package contents: 1 x Heater control valve. 1 x Connector. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.