[COMPATIBLE]: Inlet Thread: Female M10*1 (0.394inch), Outlet Thread: 7/16inch-24UNF Thread (0.429inch ), Turn-ON Gas valve with 8mm Spindle Shaft, Pilot Connection Thread: M8*1 ( The valve is for low pressure only). Control Valve and Coupler Suitable for Propane gas heaters with Thermoelectric Safety, Work with outdoor propane patio heater, standing patio heater, tower glass tube heaters, table propane heater, patio heater. Not suitable for use with Natural Gas heaters.Propane Gas valves are made of high brass with heavy duty construction for safety and durabilityInlet Thread: Female M10*1 (0.394inch)Outlet Thread: 7/16inch-24UNF Thread (0.429inch )Thermocouple with high solid brass material and high temperature protective cover.Thermocouple wire 350mmPilot Connection Thread: M8*1 ( The valve is for low pressure only).Bakelite knob D shaft 8mm, using ABS material, solid structure, durable.FD4 weak current dump switch gas R less than 10 mPatio HeatersWide range of compatibilityThis propane gas control safety valve kit is made of high brass material for durability.NOTE:1. Please check whether the interface of your heating equipment matches product you buy, because the product is not universal, heating equipment has different models of interfaces.2. When installing, please make the mounting position of each part is 3. Make the thermocouple is connected to the dump switch or valve.4. If you loosen the knob, the gas valve closes again. Please check your thermocouple is always heating on the . Turn on the gas and the valve for 5-10 seconds until the thermocouple probe is heated.Colour:Photo ColorMaterial:brass, plasticSize:11.5cmPackage Contents:1 x Heaters Control Valve1 x CouplerOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.