21x23 1/2x1 MERV 10 Plus Carbon AC Furnace Filters

21x23 1/2x1 MERV 10 Plus Carbon AC Furnace Filters

Marsoni

M251S

$116.40

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

21x23 1/2x1 MERV 10 Plus Carbon AC Furnace FiltersActual Size: 20 x 23 1 8 x 3 4 (20 x 23. 13 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 10 is equivalent to MPR 1000 Made in

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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I just received these for my son. They are very nice and look sturdy, but he hasn't worn them yet, so I cannot speak to how well they hold up in the wash or when worn. They appear to be the right size and look stretchy, but not the kind of stretchy that feels super tight on the foot (which I don't like). If they wear unusually well or poorly, I will come back and edit this.

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Reviewed in the United States on December 26, 2025