Aerostar 20x25x1 Air Filter MERV 8 (For Allergies, Dust, Lint, Mold & Pet Dander

Nominal size: 20x25x1; Actual size 19 3/4x 24 3/4 x 3/4; This MERV 8 filter is comparable with MPR 600 & FPR 5.Designed to filter microscopic particles such as lint, dust mites, spores, and pollenSimple 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 excellent for everyday use. excellent materials and excellent craftsmanship ensure long-lasting durability.