Nominal Size: 20x25x4; Actual Size: 19 1/2" x 24 1/2" x 3 3/4"
100% synthetic electrostatic media for high efficiency with low air flow resistance
Comparable to MPR 1000 to 1200 Micro Allergen Defense and Honeywell Allergen Plus FPR 7
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
Intended for the filtration of small particles like lint, dust mites, spores, pollen, pet dander, fine dust, and smoke.
-33%
Aerostar 20x25x4 MERV 11 Pleated Air Filter - 2 Pack (Actual Size: 19.5 x 24.5 x 3.75)
Nominal Size: 20x25x4; Actual Size: 19 1/2" x 24 1/2" x 3 3/4"
100% synthetic electrostatic media for high efficiency with low air flow resistance
Comparable to MPR 1000 to 1200 Micro Allergen Defense and Honeywell Allergen Plus FPR 7
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
Intended for the filtration of small particles like lint, dust mites, spores, pollen, pet dander, fine dust, and smoke.