


19x21x1 Exact MERV 12 AC Furnace Filters
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
19x21x1 Exact MERV 12 AC Furnace FiltersActual Size: 19 x 21 x 3 4 (19 x 21 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores and other contaminants. Ideal for high efficiency air filtration and will help those with moderate allergies and asthma. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500 1900 Made in the USA. Nordic Pure MERV 12
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 95 reviews
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Product Reviews
★★★★★ 2
Weird smell and reduction in air flow
The filter has a strange smell to it which I am not sure if mentioned in the description. It also seemed to reduce air flow due to the addition of the carbon pellets. Had to run the fan on full to get same amount of air flow usually occurring on 3.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
★★★★★ 5
Easily Replaceable Filter 2023 Jeep Laredo
Fits 2023 Jeep Grand Cherokee Laredo Altitude and took all of 10mins to replace by a girl.
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Reviewed in the United States on March 8, 2025
★★★★★ 5
Great filter!!
Great filter, easy to install.
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Reviewed in the United States on April 9, 2025
★★★★★ 5
Price
Very nice active coal
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Reviewed in the United States on February 6, 2025
★★★★★ 2
Weird Smell
Good for but the carbon has a weird smell. I have a sensitive nose and I'm not a fan. Going to replace with a regular filter without the activated carbon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 1, 2025