Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 17 3/4"x19 3/4"x3/4")
Brand: Aerostar
Color: MERV 11
Nominal size: 18x20x1; Actual size: 17 3/4"x19 3/4"x3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7.
Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke
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 in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive