This kit is intended for griddles with a gas rail thread size of 9/16"-18UNF (United National Fine Thread). Griddles that can connect to a 1 lb propane regulator have this thread size.
Please note that this kit is only compatible with griddles that have easily accessible valves. Please verify that you can access the valve orifice before purchasing the kit. It is also not compatible with any rangetop/side burner tabletop units.