18x24x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 13x25x1 Captures large airborne particles like

Captures large airborne particles like household dust

this double-media half inch air filter is even more effective than a half inch pleated air filter

but they WILL be strong

Actual Size: 16 x 21 1/2 x 3/4 (16 x 21

Nordic Pure 16x25x5 1/4 Goodman/Carrier/Amana Replacement MERV 12 air filters are unique because of the actual size of the filter compared to the nominal size

18x24x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 13x25x1 Captures large airborne particles likeActual Size: 17 1 2 x 23 3 8 x 3 5 8 (17. 5 x 23. 38 x 3. 63) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and helps eliminate unwanted odors and other contaminants. Ideal for customers looking for superior filtration and odor control or for commercial units which support a rating of MERV 15 and above Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame.