★★★★★ 5
I'll get again.
Style: PA99892
Perfect fit and nice condition
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
21x21x1 MERV 12 AC Furnace Filters
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
21x21x1 MERV 12 AC Furnace FiltersActual Size: 20 3 4 x 20 3 4 x 3 4 (20. 75 x 20. 75 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
Quick Dispatch:
Your 21x21x1 MERV 12 AC Furnace Filters orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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.
- To process your return/exchange, please contact us at [email protected]
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4.5 ★★★★★
Based on 269 reviews
Sort
Product Reviews
★★★★★ 5
Great Value
Style: PA99892
Great value. Dealer wants $75 to replace engine filter. The filter is just as good as the OEM one. Total time to install is less than 3 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
★★★★★ 5
fits like OEM
Style: PA99892
This fits a 2023 Civic Sport Touring without issue. It looks indistinguishable to the OEM filter. Getting the lid off the airbox is the hardest part as it is wedged in there pretty good. Other than that, this is a very do-able DIY job, and it's a lot cheaper than having the dealer do it. I have no concerns. Thumbs up.
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Reviewed in the United States on April 6, 2025
★★★★★ 5
Excellent Value, Easy to install
Style: PA99892, Style: PA99892
This filter fit perfectly! I have a 2023 Civic Touring with about 25,000 miles. I bought it new with 2 years of service, and when I went to the dealer for my last free oil change they wanted to charge me $135 to replace my engine air filter and my cabin air filter. Ouch! I have replaced air filters before so I knew it would be a fairly easy job. I was done in about 5 minutes and the filter material is as good as the original Honda filter I replaced.
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Reviewed in the United States on February 18, 2025
★★★★★ 5
Great product
These are very good filters and the price is great. I have found that replacing both these filters at the same time works well for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
