Aerostar 20x20x1 MERV 13 Air Filter, 4 Count, ACTUAL SIZE (19.75 x 19.75 x 0.75), HVAC, Air Conditioning & Furnace Filter for Allergies, Dust, Pet Dander & Smoke (MPR 1500 / FPR 10), Made in USA
Nominal size: 20x20x1; Actual size: 19 3/4" x 19 3/4" x 3/4"; This MERV 13 filter is comparable with MPR 1500-1900 & FPR 10
Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria
Simple 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 months
100% synthetic electrostatic media for high efficiency with low air flow resistance
Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
