PACKAGE INCLUDES: 12 units of 1/2" 11630 water heater drain plugs for easy replacement and suitable for use as spare parts APPLICATION: Replacement 1/2" water heater drain plug, compatible with various RV, camper, and Atwood water heater models INSTALLATION: Requires only a 7/8 inch wrench for quick and easy installation FUNCTION: Designed to facilitate water drainage from water heaters and help prevent long-term buildup of sediment DURABLE MATERIALS: Constructed from durable materials with a functional design for long-lasting performance