


20x20x4 (3 5/8) Pleated MERV 13 Air Filters
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
20x20x4 (3 5/8) Pleated MERV 13 Air FiltersActual Size: 19 1 2 x 19 1 2 x 3 5 8 (19. 5 x 19. 5 x 3. 63) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, smog and other contaminants. 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
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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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Reviewed in the United States on August 2, 2025
★★★★★ 1
Use locktight red or blue
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