[COMPATIBLE]: Inlet Thread: Female M10*1 (0.394 inch), Outlet Thread: 7/16 inch-24UNF (0.429 inch), Turn-ON Gas Valve with 8 mm Spindle Shaft, Pilot Connection Thread: M8*1 (Valve is for low pressure only). Control Valve and Coupler suitable for propane gas heaters with thermoelectric safety systems. Works with outdoor propane patio heaters, standing patio heaters, tower glass tube heaters, table propane heaters, and patio heaters. Not suitable for use with natural gas heaters. Propane gas valves are constructed from high brass for safety and durability. - Inlet Thread: Female M10*1 (0.394 inch) - Outlet Thread: 7/16 inch-24UNF (0.429 inch) - Thermocouple made of solid brass with high-temperature protective cover - Thermocouple wire length: 350 mm - Pilot Connection Thread: M8*1 (Valve is for low pressure only) - Bakelite knob with D-shaft 8 mm, made from ABS material, solid structure, durable - FD4 weak current dump switch, gas R less than 10 mΩ Wide range of compatibility: This propane gas control safety valve kit is made of high brass material for durability. NOTE: 1. Please verify that the interface of your heating equipment matches this product, as it is not universal and heating equipment may have different interface models. 2. During installation, ensure each component is properly mounted. 3. Ensure the thermocouple is correctly connected to the dump switch or valve. 4. If the knob is loosened, the gas valve will close. Allow the thermocouple probe to heat up by turning on the gas and holding the valve open for 5–10 seconds until the thermocouple is sufficiently heated. Color: As shown in photo Material: Brass, plastic Size: 11.5 cm Package Contents: 1 x Heater Control Valve 1 x Coupler Only the items listed above are included. Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1–3 cm due to manual measurement.