Evaporative Cooler Media, Environmental Applications Commercial/Industrial, Residential, Height 21 in, Width 13 in, Depth 1/8 in, Pad Material Wood Fiber, Pad Features Biodegradable, Replaces Part No. Champion/Essick 110087, For Use With Champion model WCM28 (2 pads needed);Essick model N28W (2 pads needed)