Nominal dimensions: 16 3/8 x 21 1/2 x 1; Real dimensions: 16 3/8" x 21 1/2" x 3/4"; This MERV 6 filter is equivalent to MPR 300 and FPR N/A.
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
Designed to filter microscopic particles such as lint, dust, and pollen
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