16 1/2x21x1 Exact MERV 10 AC Furnace Filters 12x25x 1/2 With the 4" and 5"

With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer

the material is electrostatically charged to attract unwanted particles

layer is a MERV rated smooth poly-blend filter material

Nordic Pure 14x20x2 MERV 7 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

16 1/2x21x1 Exact MERV 10 AC Furnace Filters 12x25x 1/2 With the 4" and 5"Actual Size: 16 1 2 x 21 x 3 4 (16. 5 x 21 x 0. 75) Removes pollen, smoke particles, pet dander, bacteria, allergens, mold, virus carriers, and other contaminants. Ideal for normal air filtration and will help those with mild allergies. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 10 is equivalent to MPR 1000 Made in the USA. Nordic Pure MERV 10 Pleated AC Furnace Air Filters provide