Premium Material: Made of premium PVC and copper material, sturdy and durable, resistant to bending and wear. Compatibility: Suitable for Karcher K2, K3, K4, K5, K6, K7 pressure washers. Superior Performance: Maximum pressure up to 2320 psi/160 bar and maximum temperature 60°C. Quick Connect: Adapt the new type of click connectors at both ends, you can quickly connect or disconnect with the pressure washer and gun, saving time and effort. Note: Our pressure hose only fits the new type of spray gun with quick connect, and your gun must have a yellow button (not black), then our hose will work. How to avoid the high-pressure water hose from kinking? On hot and sunny days, stretch it out and let it lie for a few hours. Roll it up and store it neatly. When you take it out, unlock it first and then let it lie for 10 minutes. Then it should stand more upright. Warm Tips: 1. In winter, do not place the pressure washer hose outdoors after use, store it in a ventilated and dry place indoors. 2. In winter, it is necessary to drain the water from the pressure washer hose in time, prevent it from freezing and bursting.