#2488 Aerostar 20x20x1 Merv 11 Pleated Air Filter for AC, Furnaces. 6 pack

#2488Nominal size: 20x20x1; Actual size 19 3/4x 19 3/4 x 3/4; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smokeSimple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months100% synthetic electrostatic media for high efficiency with low air flow resistance flawless for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.