Premium Material: Made of premium PVC and copper, sturdy and durable, resistant to bending and wear. Compatibility: Suitable for Karcher K2, K3, K4, K5, K6, K7 pressure washers. Superior Performance: Maximum rated pressure up to 2320 psi/160 bar and maximum temperature 60°C. Quick Connect and Release: Adapt the new type of click fittings on both ends, you can quickly connect or disconnect with the pressure washer and gun, saving your time and effort. Note: Our pressure hose only fits the new style trigger gun with quick connect and quick release, and your gun must have a yellow button (not black), then our hose will work. How to avoid high-pressure water hose kinks? On hot and sunny days, stretch it and leave it for a few hours. Roll it up and store it carefully. When you take it out, unlock it first, and then leave it for 10 minutes. Then it should stay straighter. Warm tips: In winter, do not place the high-pressure washer hose outdoors after use, store it in a ventilated and dry