Compatible with Kärcher K2-K7 series high-pressure cleaners and AQT series high-pressure cleaners. Enables connection to alternative water sources for clean water intake. Suitable for use with compact and portable high-pressure washers. Features a 3-meter water hose constructed with high-quality three-layer material designed to be cold-resistant, wear-resistant, kink-resistant, crack-resistant, and pressure-resistant. Includes a built-in filter with check valve to prevent backflow and protect against dry running, along with a fine mesh screen to capture particulate impurities. Equipped with quick-connect fittings made of durable plastic for fast assembly, and secured with 304 stainless steel straps for corrosion resistance. All components included in one package for easy self-assembly. Each connection should be securely tightened to ensure optimal water suction. No additional tools required for installation.