Filter Rigid Merv13 20x20x12 ,Each

Details:

Filter rigid merv13 20x20x12^ r-813 80[percent]-85[percent], ultrafine high loft microglass media, pleated construction with pleat stabilizers (fingers) on both sides, galvanized steel cell sides, box construction (no header) and header models, four efficiencies - 90-95[percent], 80-85[percent], 60-65[percent], 50-55[percent]