Using the DeWalt DWZPWRH25 replacement hose is simple. First, make sure your pressure washer is turned off and unplugged if it's corded. Then, attach one end of the hose to the pressure washer outlet and the other end to the cleaning tool. You can use it with both corded and cordless electric pressure washers up to 3,000 PSI and 1.7 GPM. When using, keep an eye on the pressure and don't exceed the recommended limits. After use, drain the water from the hose. Store it in a cool, dry place away from direct sunlight and sharp objects to extend its lifespan. Also, regularly check for any signs of wear or damage, like cuts or leaks. If you notice any problems, replace the hose promptly.