18x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 15x20x1 this is just a list

this is just a list of the most well-known systems that use this size

The Pleated Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Actual Size: 15 3/8 x 23 3/8 x 1 3/4 (15

RETURNS: Custom AC furnace air filters are not returnable since we hand make them per your exact dimensions when you enter your air filter size above

along with a Nordic Pure MERV 8 rating

18x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 15x20x1 this is just a listActual Size: 17 1 2 x 23 3 8 x 3 5 8 (17. 5 x 23. 38 x 3. 63) 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