Aerostar 14x20x1 MERV 11 Air Filter, 6 Count, ACTUAL SIZE (13.50 x 19.50 x 0.75), HVAC, Air Conditioning & Furnace Filter for Dust, Pet Dander, Smoke & Allergies (MPR 1200 / FPR 7), Made in USA

Aerostar 14x20x1 MERV 11 Air Filter, 6 Count, ACTUAL SIZE (13.50 x 19.50 x 0.75), HVAC, Air Conditioning & Furnace Filter for Dust, Pet Dander, Smoke & Allergies (MPR 1200 / FPR 7), Made in USA

• Nominal size: 14x20x1; Actual size 13 3/4"x 19 3/4" x 3/4"; 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 by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive