22 inch id x 2.25 inch deep, aluminum drain pan, with PVC fitting, for gas or electric water heaters, will not rust, corrode or crack pre-cut side opening for drain fitting, 1 inch to 1-1/2 inch drain fitting included. From the Manufacturer Camco 20840 Aluminum Water Heater Drain Pan with Dual 1/1.5 Inch PVC Fitting, 22 Inch (Pack of 1)