Aerostar 19 7/8 x 21 1/2x1 MERV 6 Pleated Air Filter, AC Furnace Air Filter, 6 Pack

Nominal Size : 19-7/8 x 21-1/2 x 1, Actual Size: 19-7/8" x 21-1/2" x 3/4"

This MERV 6 filter is comparable with MPR 300 & FPR N/A; 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

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

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