Easy to install, Installation of this Low Pressure Fireplace Pit Flame Failure Safety Control Valve Kit is simple, simply install the control valve vertically over the opening of the appliance, then secure the valve with the screws and attach the thermocouple nut M8 to of the valve and the knob snaps on and the installation is complete. Package includes:1* Propane Gas Fireplace Fire Pit Flame Failure Safety Control Valve (with 5/8inch-18UNF-3/8inch Flare Inlet & Outlet); 1* 600 mm thermocouple with M8*1 threaded head; 1* Platic Black Bakelite Knob. Safe & , our fire pit replacement valve is made of Metal, which 't rupture during use, providing a tight, leak-free connection that's and more reliable. Our fire pit ignition system is made of high temperature material. Suitable for units of 150,000 btu or less, the wire can withstand temperatures up to 200 degrees Celsius. Our Low Pressure LPG Gas Fireplace Fire Pit Flame Failure Safety Control Valve Kit for low pressure burners below 50,000 BTU and below 65 millibar (1/2PSI) working pressure., Weight: 0.39903669422 Pounds, Manufacturer: MOLERRI