This drain hose is an OEM, manufacturer-approved replacement part for your dishwasher. The drain hose filters out the wastewater from the dishwasher. If there is a hole in it, water will leak out of your dishwasher. Shut off the water and power to the unit before beginning this repair. Accessing the drain hose involves unscrewing the dishwasher and pulling it out. Remove the clamp holding the hose in place to its connection under the sink, using a 5/16ths socket. Disconnect the fill line. Use a 1/4 inch nut driver to loosen the clamp at the other end of the drain hose. Keep a towel handy for any water still inside. Keep the clamps for use on your new drain hose. Reinstall all hoses and lines in reverse order.