The water tubing is made of plastic and goes between the water valve and the back of your refrigerator. The tubing is 72” in length, 1/4 inch in diameter, and comes with 2 inserts. This tube may be longer than the original tube and may need to be cut to fit your appliance. The water tube transports water to the ice and water dispensers. If there is no water going to the ice maker, your refrigerator is leaking, or if the ice and water dispensers are not dispensing properly, you may need to replace this tube kit. This part is an OEM part directly from the manufacturer. Please remember to shut off the water supply and to disconnect the power to your refrigerator before starting your repair.