Rheem AP12934 Plastic Water Heater Drain Pan with Fittings, 20-Inch For best results, use only Rheem replacement parts for repairing your Rheem Water Heater Material: Plastic, Shape: Round, Diameter - Bottom (in.): 20, Diameter - Top (in.): 22 Kits which contain this part: SP12934 Height (in.): 2-3/4, Drain Hole Size (in.): 1, PVC Drain Fitting: Glue-in for 1 in. pipe