Product Description Control Valve and Thermo 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, Hampton bay patio heater. Thermo coupler design for Gas heaters Outdoor heaters Gold plated, connectors inside. Thermocouple and switch are used to solve the problem that the indicator light is not on. Control Valve recommend having thread tape in order to make sure there are no leaks If your original thermocouple has a threaded body and is fixed to the heater by a pair of nuts. The product has a smooth (unthreaded) body that is tapered with a notch at the bottom to be pressed into the mounting hole and the notch holds it in place. If not suitable for your mounting hole; Use a bit of drill bit to enlarge the hole and let it slide in. A small amount of heat-resistant epoxy resin can be used to help stabilize. Disclaimer: All product names, s, logos and or other trademarks within our sales information are the property of their respective owners. These are used to simplify the identification of the proper parts for electrical appliances. None of the companies or trademarks affiliate with, endorse or sponsor us or our products Specifications: Inlet Thread: Female M10*1 (0.394") Outlet Thread: 7/16"-24UNC Thread (0.429" ) Turn-ON Gas valve with 8mm Spindle Shaft Thermocouple wire total 350mm M8*1 Nuts on end Compatible: Work with outdoor propane patio heater, standing patio heater, tower glass tube heaters, table propane heater, Hampton bay patio heater. Package included: 1 x Heaters Control Valve 1 x Thermo Coupler Product Display