Evaporative Cooling Media, Environmental Applications Residential/Commercial/Industrial, Height 15 1/2 in, Width 24 in, Depth 1 9/16 in, Pad Material Polyester Fiber, Pad Features Washable - extending the life of the pad, the unique foamed construction quickly wets out the pad. to fit and easy to install., Replaces Part No. Champion/Essick 110124-3, For Use With MasterCool MMBT12 (2 pads needed), 2 side pads required per unit (part # 110124-3),1 back pad required per unit (part # 110124-4)