12x27x1 MERV 13 Plus Carbon AC Furnace Filters Number Per Box:6 Ideal for normal air filtration

Ideal for normal air filtration and will help those with mild allergies

Actual Size: 11 1/2 x 19 1/2 x 1/2 (11

MERV 10 furnace filters are comparable to HVAC filters with the rating of MPR 900-1000

and any air system that requires half-inch (1/2") air condition filters

12x27x1 MERV 13 Plus Carbon AC Furnace Filters Number Per Box:6 Ideal for normal air filtrationActual Size: 11 1 2 x 26 1 2 x 3 4 (11. 5 x 26. 5 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, smog, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers looking for superior filtration but needing an odor control element Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR 2200 2400