Camco’s Threaded Water Heater Dip Tube allows you to replace your broken or failed water heater dip tube. It helps preserve your water heater’s hot water by directing cold water towards the bottom of the tank. As a result, the tank’s hot water remains at the top for maximum heating efficiency. The dip tube’s anti-siphon hole expels air to break damaging siphon action. This product is made out of water-safe, CSA certified polymer pipe. It measures 50 ½-inches (L), but can be cut to the desired length. It features a 5-inch-long nipple with a ¾-inch NPT.