18x25x2 Pleated Air Filters MERV 13 Plus Carbon Number Per Box:12 which is 9-gauge wire grid

which is 9-gauge wire grid with a support that runs through the middle for added strength and stability

Nordic Pure 14x20x1 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

The media used will not promote the growth of bacteria or mold on the air filter and is better at trapping airborne particles than fiberglass filters

Nordic Pure 14x30x1 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

leaving healthier

18x25x2 Pleated Air Filters MERV 13 Plus Carbon Number Per Box:12 which is 9-gauge wire gridActual Size: 17 1 2 x 24 1 2 x 1 3 4 (17. 5 x 24. 5 x 1. 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