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Amazon.com: Nordic Pure 20x25x4 (19_1/2 x 24_1/2 x 3_5/8) Pleated MERV 12 Air Filters 2 Pack : Home & Kitchen
![16x25x5 (16x25x4.38)Replacement Filters that fit most Honeywell, Carrier, Bryant, Lennox 4 inch filters. 16x25x5 (16x25x4.38)Replacement Filters that fit most Honeywell, Carrier, Bryant, Lennox 4 inch filters.](https://cdn11.bigcommerce.com/s-j9pqr1fx/images/stencil/1280x1280/products/1104/3909/dupont-16254-4-pk__54451.1629571356.jpg?c=2)
16x25x5 (16x25x4.38)Replacement Filters that fit most Honeywell, Carrier, Bryant, Lennox 4 inch filters.
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Nordic Pure 16 in. x 25 in. x 2 in. Allergen Pleated Furnace Air Filter MERV 12 (3-Pack) 16x25x2M12-3 - The Home Depot
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Filtrete 16 In. x 25 In. x 1 In. 1550 MPR Ultra Allergen Healthy Living Furnace Filter, MERV 12 - Jerry's Do it Best Hardware
![Box fan with 3M MERV 12 Filtrete filters on the front and back, duct taped. I have a small room, will this do the trick as a Corsi-Rosenthal box? Not sure why Box fan with 3M MERV 12 Filtrete filters on the front and back, duct taped. I have a small room, will this do the trick as a Corsi-Rosenthal box? Not sure why](https://i.redd.it/pzxps9iins6a1.jpg)
Box fan with 3M MERV 12 Filtrete filters on the front and back, duct taped. I have a small room, will this do the trick as a Corsi-Rosenthal box? Not sure why
![Nordic Pure 12x24x1 Pleated MERV 12 Plus Carbon AC Furnace Air Filters Qty 3 - Bed Bath & Beyond - 18653156 Nordic Pure 12x24x1 Pleated MERV 12 Plus Carbon AC Furnace Air Filters Qty 3 - Bed Bath & Beyond - 18653156](https://ak1.ostkcdn.com/images/products/is/images/direct/6027dbab63a258103e74e4e81196ce189b068ed3/Nordic-Pure-12x24x1-Pleated-MERV-12-Plus-Carbon-AC-Furnace-Air-Filters-Qty-3.jpg?impolicy=medium)
Nordic Pure 12x24x1 Pleated MERV 12 Plus Carbon AC Furnace Air Filters Qty 3 - Bed Bath & Beyond - 18653156
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Filtrete 12-in W x 12-in L x 1-in MERV 12 1500 MPR Allergen, Bacteria and Virus Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
![Nordic Pure 20x25x5 (19_7/8 x 24_7/8 x 4_3/8) Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack - Amazon.com Nordic Pure 20x25x5 (19_7/8 x 24_7/8 x 4_3/8) Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack - Amazon.com](https://m.media-amazon.com/images/I/61tOiVoLgxL._AC_UF894,1000_QL80_.jpg)
Nordic Pure 20x25x5 (19_7/8 x 24_7/8 x 4_3/8) Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack - Amazon.com
![Amazon.com: Honeywell Home 20x25x4 MERV 12, AC Furnace Air Filter, 3 PACK (CF200A1016-3PKAM) (Actual Dimensions: 18.84 x 24.75 x 4.38 in.) : Everything Else Amazon.com: Honeywell Home 20x25x4 MERV 12, AC Furnace Air Filter, 3 PACK (CF200A1016-3PKAM) (Actual Dimensions: 18.84 x 24.75 x 4.38 in.) : Everything Else](https://m.media-amazon.com/images/I/61vtTMQAUeS._AC_UF894,1000_QL80_.jpg)
Amazon.com: Honeywell Home 20x25x4 MERV 12, AC Furnace Air Filter, 3 PACK (CF200A1016-3PKAM) (Actual Dimensions: 18.84 x 24.75 x 4.38 in.) : Everything Else
![3M 2019DC-4 Filtrete Healthy Living MPR-1500 Merv-12 Ultra Allergen Filter 12 By 20 By 1 Inch: 12 by 20 Inch Filters (051111020197-1) 3M 2019DC-4 Filtrete Healthy Living MPR-1500 Merv-12 Ultra Allergen Filter 12 By 20 By 1 Inch: 12 by 20 Inch Filters (051111020197-1)](https://images.cdn.hardwareandtools.net/original/051111020197.webp?v=QlNaWkpISmVUbTZGcCtPcW9BVkxnbVJtK2t5YTJBOHB3eXVvNzYyWTdUcz0~)
3M 2019DC-4 Filtrete Healthy Living MPR-1500 Merv-12 Ultra Allergen Filter 12 By 20 By 1 Inch: 12 by 20 Inch Filters (051111020197-1)
![20x25x4 DuPont MERV 12 Pro Allergen Air Filters. Case of 3. Exact Size: 19-7/8 x 24-3/4 x 4-3/8. Fits most 4.38 inch Depth Honeywell, Bryant, Carrier & Lennox Filters. - Walmart.com 20x25x4 DuPont MERV 12 Pro Allergen Air Filters. Case of 3. Exact Size: 19-7/8 x 24-3/4 x 4-3/8. Fits most 4.38 inch Depth Honeywell, Bryant, Carrier & Lennox Filters. - Walmart.com](https://i5.walmartimages.com/seo/20x25x4-DuPont-MERV-12-Pro-Allergen-Air-Filters-Case-3-Exact-Size-19-7-8-x-24-3-4-4-3-8-Fits-4-38-inch-Depth-Honeywell-Bryant-Carrier-Lennox_7b48b18b-fa1c-4356-90f2-84ccd0be7b94.a8c72b349124cf37a036cfcbf4862865.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)