20x25x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon

20x25x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon

Marsoni

M251S

$36.99

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

20x25x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus CarbonActual Size: 19 1 2 x 24 1 2 x 3 5 8 (19. 5 x 24. 5 x 3. 63) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. If you are replacing a Honeywell or Lennox 20x25x4 Plus Carbon or an air filter with an MPR rating with an actual depth of 4 3 8, please see our 20x25x5 (4 3 8 actual depth) Hypoallergenic, antimicrobial, and electrostatic filter

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We offer a 30-day return/exchange service after receiving.
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I installed this K&N Lifetime Cabin Air Filter in my 2016 F-150 and noticed the difference right away. The airflow is stronger, and the cabin smells fresher even when driving through dusty or humid areas. What I really like is that it’s washable and reusable—so I won’t have to keep buying filters every year. Fitment was perfect and install took under 10 minutes. Just pop out the old one, slide this one in, and you’re good to go. It feels solid and well made, not like those cheap paper ones. It’s definitely worth the investment, especially if you drive a lot or have allergies. Highly recommend for anyone with a Ford or Lincoln vehicle—it pays for itself quickly!

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Reviewed in the United States on July 3, 2025

Verified Purchase

Bill

Lexington, US

★★★★★ 5

Fit 2024 F250 Platinum

Size: 1.9" x 9.9" x 11.4"

Good quality, perfect fit.

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Reviewed in the United States on April 16, 2026

Verified Purchase

JAMES ERIK FOREHAND

Bozeman, US

★★★★★ 5

Great

Size: 1.9" x 9.9" x 11.4"

Great value for the money and easy to install.

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Reviewed in the United States on May 10, 2026

Verified Purchase

Mark Liszkiewicz

Battle Creek, US

★★★★★ 5

nice quality

Size: 1.9" x 9.9" x 11.4"

I happen to be a fan of K&N air filters. Fit perfect in my vehicle. Seems like a much nicer quality filter than the cheapo filters from the parts store.

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Reviewed in the United States on March 7, 2026