Filter Rigid Merv13 20x20x12 ,Each

Details:

Filter rigid merv13 18x24x12^ vma-811 80[percent]-85[percent], ultrafine microglass paper media, moisture resistant construction, single header, double header, no header models, metal and wood cell sides, corrugated aluminum separators, high temperature models up to 900degf. 80-85[Percent] efficiency