20x24x1 Pleated MERV 7 Air Filters Number Per Box:12 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

Actual Size: 11 7/8 x 29 7/8 x 3/4 (11

Nordic Pure 10x20x2 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

Each Nordic Pure 1” MERV 7 air filter captures airborne particles as small as 3

20x24x1 Pleated MERV 7 Air Filters Number Per Box:12 With the 4" and 5"Actual Size: 19 1 2 x 23 1 2 x 3 4 (19. 5 x 23. 5 x 0. 75) Merv 7 pleated air filter captures large airborne particles like household dust, mold spores, and pollen. This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 7 is equivalent to MPR 600 Made in the USA. Nordic Pure MERV 7 Pleated AC Furnace