Compatible with Karcher K2-K7 series high-pressure cleaners and AQT series high-pressure cleaners. Enables you to draw clean water from a water source other than a tap. Can be used with compact and portable high-pressure washers. 3 meters long water pipe: High-quality 3-layer cold-resistant, wear-resistant, bending-resistant, crack-resistant, and explosion-proof material. High-quality filter: Includes a check valve to allow water to enter but not exit, helping prevent the machine from running dry. Built-in self-sinking block with a fine mesh filter to ensure particulate impurities are filtered out. Quick couplings and fastening strips: High-quality plastic quick couplings for easy assembly in seconds. Fastening device made of 304 stainless steel for corrosion resistance. Easy to install: All accessories included in one package; assembly required. Each connector should be tightened to ensure proper water intake. No additional tools needed for quick installation.