This Natural Gas or LPG Conversion Jet Nozzle Injector is designed for converting gas appliances. It features an orifice size of 122, which corresponds to 1.22mm. The injector has a standard M6 x 0.75 thread, a height of 9mm, and a diameter of 7mm across the flat. It is compatible with Natural Gas (G20), Propane (G30), and Butane (G31), as well as Calor gas. This jet nozzle injector will fit a wide range of modern cookers and hobs from brands such as AEG, Ariston, Baumatic, Beko, Bosch, Candy, Cannon, Creda, Electrolux, Gorenje, Hotpoint, Indesit, Siemens, Stoves, New World, Zannusi, Vitralux, and Whirlpool. Please note that any gas-related work should be performed by a Gas Safe registered engineer. There is a tolerance of +/- 0.1mm allowed on jet sizes. Manufacturer: Tezla Gas Products.