Unlike other A/C filters where the nominal and actual sizes differ by a fraction of an inch
MERV 10 Plus Carbon air filters are comparable to air filters with the rating of MPR 900-1000
AC and heater window units
Nordic Pure 12x25x1 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
Moisture resistant frame
12x20x1 Pleated MERV 13 Air Filters Number Per Box:24 Unlike other A/C filters whereActual Size: 11 1 2 x 19 1 2 x 3 4 (11. 5 x 19. 5 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, smog and other contaminants. Ideal for customers looking for superior filtration Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR 2200 2400 Made in the USA. Nordic Pure MERV 13 Pleated AC Furnace Air Filters