Premium Quality Material: Made from premium PVC and copper materials, it's robust and durable, resistant to bending and wear. Compatibility: Suitable for Karcher K2, K3, K4, K5, K6, K7 high-pressure washers. Superior Performance: Maximum pressure up to 2320 psi/160 bar and maximum temperature of 60°C. Quick Connect and Release: Features new type click couplings at both ends, allowing you to quickly connect or disconnect from the pressure washer and gun, saving you working time and effort. Note: Our pressure hose only fits new style trigger guns with quick connect and quick release, and your gun must have a yellow button (not black) for our hose to work. On hot sunny days, stretch it out and leave it for a few hours. Roll it up and store it carefully. When you take it out, unlock it first, then let it stand for 10 minutes. It should then hold straighter. Warm Tips: 1. Do not leave the pressure washer outdoors after use in winter; store it indoors in a ventilated and dry place. 2. In winter, it is necessary to drain the water from the jet wash pipe in time to prevent it from freezing and cracking.