Evaporative Cooling Media, Environmental Applications Residential/Commercial/Industrial, Height 27 1/2 in, Width 27 3/4 in, Depth 1/2 in, Pad Material Aspen, Pad Features Mechanical layering for uniformity in pad thickness and density, Biodegradable stitching which penetrates matting for stability, Each seam runs entire length of pad for strength., Replaces Part No. Champion/Essick 110098