



20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus CarbonActual Size: 19 5 8 x 19 7 8 x 4 3 8 (19. 63 x 19. 88 x 4. 38) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and helps eliminate unwanted odors and other contaminants. Replaces Honeywell 20x20x4 and filters with an MPR rating with an actual depth of 4 3 8 and ideal for superior filtration and odor control or commercial units Hypoallergenic, antimicrobial, and electrostatic filter media.
Quick Dispatch:
Your 20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 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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Product Reviews
★★★★★ 5
2016 Honda Accord fits perfect!
Size: 1 Count (Pack of 1)
Works great and fits perfect for my 2016 Honda Accord 2.4L
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Good Quality, Easy to Install
Size: 1 Count (Pack of 1)
Good product, easy to install, but make sure to locate the direction arrow for proper installation. This one didn't have a very clear arrow but figured it out quickly and the install was done in seconds. I recommend this product.
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Reviewed in the United States on February 24, 2026
★★★★★ 5
DIY - Save $$
Size: 1 Count (Pack of 1)
Comparable item dealers provide, but if you can DIY, you’ll save $40-50 bucks installation. Helpful hint, before installing, take a market and put the date and mileage of the end of the filter. Unless you drive a lot, the filters generally last a year.
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Reviewed in the United States on November 23, 2025
★★★★★ 5
It fits.
Size: 1 Count (Pack of 1)
It fits our 2016 Honda CRV.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Fits my 2022 11th gen Honda Civic
Fits my 2022 11th gen Honda Civic perfectly. Much cheaper than the OEM and works just fine.
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