The valve is made of high-quality materials. The valve housing is a brass casting, while the ball itself is stainless steel with nylon fittings around it. The sturdy brass structure ensures long-lasting performance. It has extremely high hardness, wear resistance, and corrosion resistance to extend the service life of the workpiece.Our key valve is very easy to . It is controlled by a key, so when the key is not inserted into the valve, it cannot be operated.Simple Operation,The can be activated very easily without opening the door and turning other valves.1/2 inch valve with standard NPT internal thread. It is very suitable for propane and natural gas fire pit fireplaces. It can be used for natural gas or propane up to 90000 BTU.Set list: 1 3 inch fireplace key, 1 key sleeve and 2 1/2 NPT copper connector outer teeth form our included straight-through gas shut-off valve kit.Fireplace key: 3 inchesKey socket interface size: 1/2 inchCopper connector: 1/2 inch NPTcolor:Gold+silverMaterial:Brass+Stainless SteelPackage Contents:1 set x Gas valve key kitOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.