The car washer water cleaning extension hose has durability and flexibility, and is suitable for many types of high-pressure car washers and water guns. The hose is made of high-strength PVC, rubber or nylon braided materials, with wear resistance and pressure resistance, and can withstand long-term use of high-pressure water flow. At the same time, its UV resistance and anti-corrosion properties ensure that the hose is not easy to age or deform during long-term use in different weather conditions. The hose is equipped with standardized quick connector interfaces at both ends, which is compatible with brands of high-pressure car washers and water guns on the market. Its connectors are usually made of brass or stainless steel, which can effectively prevent water leakage and ensure stable water pressure output. The hose is designed to be soft and lightweight, easy to operate and store. It will not easily get tangled or entangled during use, greatly improving the smoothness and convenience of cleaning work. It is especially suitable for cleaning vehicles, courtyard floors, walls, windows and other surfaces.