[COMPATIBLE]: Inlet Thread: Female M101 (0.394 inch), Outlet Thread: 7/16 inch-24UNF Thread (0.429 inch), Turn-ON Gas Valve with 8 mm Spindle Shaft, Pilot Burner Connection Thread: M81 (The valve is for low pressure only). Control Valve Coupler Suitable for Propane Gas Heaters with Thermoelectric Safety. Works with Outdoor Propane Patio Heaters, Tower Glass Tube Heaters, Table Propane Heaters, Bay Patio Heaters. Not Suitable for Use with Natural Gas Heaters. Propane Gas Valves are made of high-quality brass with heavy-duty construction for safety and durability. Inlet Thread: Female M101 (0.394 inch) Outlet Thread: 7/16 inch-24UNF Thread (0.429 inch) Thermocouple with high-quality solid brass material and high-temperature protective cover. Thermocouple wire total length: 350 mm Pilot Burner Connection Thread: M81 (The valve is for low pressure only) Bakelite knob with D shaft 8 mm, made of ABS material, solid structure, durable FD4 weak current tilt dump switch, gas resistance less than or equal to 10 m Patio Heaters Wide range of compatibility This propane gas control safety valve kit is made of high-quality brass material for durability NOTE: 1. Please check whether the interface of your heating equipment matches our product before purchase, as the product is not universal and heating equipment may have different interface models. 2. During installation, ensure each part is accurately positioned. 3. Ensure the thermocouple is properly connected to the dump switch or valve. 4. If the knob is loosened, the gas valve will close. Verify that the thermocouple is consistently heated by the flame. Turn on the gas and press the valve for 5–10 seconds until the thermocouple probe is sufficiently heated. Color: As Shown in Picture Material: Brass, Plastic Size: 11.5 cm Package Contents: 1 x Heater Control Valve 1 x Coupler Only the above package content is included; other items are not included. Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement allowance is +/- 1–3 cm.