Jet cleaning spray guns can be used with both gasoline and electric pressure washers. Universal fitment on metric pressure washers, hoses, metric threaded inlet connectors The pressure washer gun extension gun is made of stainless steel, with brass quick connectors and sturdy plastic connectors, rust-proof and wear-resistant. The maximum working pressure is 4000 PSI The quick release pressure washer extension gun is compatible with most pressure washer guns with 1/4" quick connect A power cleaning wand is an extension of the spray gun that attaches to the nozzle head or other pressure washer attachment. The pressure washer spray gun extension is suitable for most brands of pressure washers and can help you clean hard-to-reach areas such as undercarriages, fenders, roofs, gutters, etc. Note: The data are all measured manually, please allow 1-3cm error Due to differences in light and display, there may be some color differences, please refer to the actual item received.