


20x20x4 (3 5/8) Pleated MERV 7 Air Filters
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
20x20x4 (3 5/8) Pleated MERV 7 Air FiltersActual Size: 19 1 2 x 19 1 2 x 3 5 8 (19. 5 x 19. 5 x 3. 63) Merv 7 pleated air filter captures large airborne particles like household dust, mold spores, and pollen. If you are replacing a Honeywell or Lennox 20x20x4 or an air filter with an MPR rating with an actual depth of 4 3 8, please see our 20x20x5 (4 3 8 actual depth) Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 7 is equivalent to
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Your 20x20x4 (3 5/8) Pleated MERV 7 Air Filters orders ship within 1-2 business days.
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- 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.
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4.3 ★★★★★
Based on 420 reviews
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Product Reviews
★★★★★ 1
No worth buying
Size: 24+19
Not worth buying, 1 month after installation they stopped working well you could see the rubber piece that makes contact with windshield was loose on the verge of coming off, it was put on our 22 civic one that isnt used very often, so the fact that they died out so easily was disapointing, i plan on looking for some better ones and avoiding this brand 👎
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Reviewed in the United States on February 19, 2026
★★★★★ 5
Recommend!
Size: 24+19+10
These are fantastic. They were inexpensive, which made me nervous, but they are definitely high quality. They were all 3 super easy to install. Highly recommend! They also don't leave my windows streaky.
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Reviewed in the United States on September 15, 2025
★★★★★ 5
Perfect!
This was exactly what I needed! It fits perfectly and was in brand new condition.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Exact fit
Original Toyota product. Exact fit.
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Reviewed in the United States on October 31, 2025
★★★★★ 5
Genuine Lexus Filter / Quick Delivery
Initially I had installed non-genuine Lexus filter, which the seller claims it fits Lexus RX. That filter fits (kinda). After installing the air-filter and closing the lid, I could see the edge of the filter because the lid did not close tightly. I am not a mechanic, but I was concerned. Hence, I ordered the genuine Lexus filter from Lexus dealer through Amazon. I paid twice more than non-genuine filter (including extra shipping charge of $10.00).
Genuine filter arrived in the FEDEX box (looks and feels pretty sturdy enough to protect the filter) only 2 days after I placed the order. I have just replaced the filter. The lid closes perfectly. Although I spent total $40, for the peace of my mind, it's the money well spent.
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Reviewed in the United States on July 20, 2022