Aerostar 12x12x1 MERV 11 Pleated Air Filter For Air Conditioner & Furnace 6 Pack​

Nominal size: 12x12x1; Actual size: 11 3/4x11 3/4x3/4; 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 smokeSimple 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 resistanceManufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive ideal for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.