11 1/2x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters

11 1/2x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters

Marsoni

M251S

$86.14

Get it in 3 business days with 1 day shipping. Friday, May 29

11 1/2x21x1 Exact MERV 12 Plus Carbon AC Furnace FiltersActual Size: 11 1 2 x 21 x 3 4 (11. 5 x 21 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers who not only need odor control but whose daily life demands high filtration Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500 1900 Made

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As another reviewer pointed out, the OEM paper filter is almost 3 times thicker than this one. All things equal, thicker would mean for filtering surface area. So with less filter media surface area, the filter would clog up quicker. However, since this is washable, maybe that's a moot point. I also noticed on my Hyundai Tucson, the rim of this filter must be slighter thicker because I had a tougher time clipping the filter box closed with this one installed. I am keeping my OEM for now, just in case.

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Reviewed in the United States on December 6, 2025