The convenient Camco Drain Plug 2-Pack lets you replace your RV 1/2" water heater drain plug quickly and easily. The drain plug has standard 1/2"-14 NPT pipe threads. It's recommended to use 3-5 wraps of Teflon tape (not included) to seal threads to prevent leaking.• Replace your 1/2" water heater drain plug quickly and easily• Fits various RV water heater models• 1/2"-14 NPT pipe threads• Easily installed using a 7/8" wrench• Package of 2 Fits various RV water heater models Easily installed using a 7/8"" wrench Package of 2 | Camco Water Heater Drain Plug, 1/2"-14 NPT, 2-Pack