Top 9 Furnace Filters 20x25x4 MERV 12 – Furnace Filters

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1. Nordic Pure

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Nordic Pure 20x25x4 MERV 10 Pleated AC Furnace Air Filters 2 Pack

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Nordic Pure #ad - If you are replacing a honeywell or lennox 20x25x4 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. Nordic pure merv 10 is equivalent to MPR 1000 Made in the USA. Measure your air filter for the exact size and compare it to our actual size to ensure proper fit. Nominal size: 20 x 25 x 4, actual size: 19 1/2 x 24 1/2 x 3 5/8 19. 5 x 24. 5 x 3. 63.
BrandNordic Pure #ad
ManufacturerNordic Pure #ad
Height3.63 Inches
Length24.5 Inches
Width19.5 Inches
Part Number20x25x4M10-2
Model20x25x4 (3 5/8)

2. Nordic Pure

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Nordic Pure 20x25x5 MERV 12 Pleated Air Bear 255649-102 Replacement AC Furnace Air Filter 1 Pack

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Nordic Pure #ad - Trion air bear replacement filters have a depth of 4 7/8" and ideal for high efficiency air filtration and those with moderate allergies. Made in the USA. Nordic pure merv 12 is equivalent to MPR 1500-1900 Nominal size: 20 x 25 x 5 ab, actual size: 19 3/4 x 24 1/4 x 4 7/8 19. 75 x 24. 25 x 4. 88. Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.
BrandNordic Pure #ad
ManufacturerNordic Pure #ad
Height4.88 Inches
Length19.75 Inches
Width24.25 Inches
Part Number20x25x5ABM12
Model20x25x5 (4-7/8 Actual Depth)
WarrantyPlease Contact the seller directly for warranty information about this product

3. BestAir

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BestAir HW2025-8R Air Cleaning Furnace Filter, For Honeywell Models, MERV 8, 1 Count Pack of 1, 20" x 25" x 4", Single Pack, Removes Allergens & Contaminants

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BestAir #ad - 0 microns; long life filter design for long lasting performance up to 12 months. Minimum efficiency reporting value MERV of 8; generating good filtration with fewer particles and contaminants that pass through the filter. Pleated design allows the bestair filter to trap up to 79% of airborne particles from 0 Filters out unwanted particles including dust lint, bacteria, pollen, mold particles, and virus carriers while allowing cleaner air to flow through.3 to 10 Designed to perform with high efficiency and minimum pressure drop; conserving energy and lowering costs.
BrandBestAir #ad
ManufacturerBestAir #ad
Height24.75 Inches
Length20 Inches
Weight0.02 Pounds
Width4.25 Inches
Part NumberHW2025-8R
ModelHW2025-8R
WarrantyN/a.

4. Tier1

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Reduces Harmful Airborne Particles for Improved Air Quality, MERV 8, Captures Dust & Pollen in Air Conditioner/Furnace, 20x25x4, 6 Pack, Tier1 Pleated Air Filter

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Tier1 #ad - 30 times more efficient than ordinary fiberglass filters at capturing the smallest, most troublesome particles 3-10 microns in size. The smart choice for quality and dependability. Improves air quality. Doesn't promote the growth of bacteria, mildew, mold, or fungi so they're a great choice for families with small children. Great for home use.
BrandTier1 #ad
ManufacturerTier1 #ad
Height3.75 Inches
Length19.5 Inches
Weight30 Pounds
Width24.5 Inches
Part NumberP85S_642025_6_PACK

5. Nordic Pure

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Nordic Pure 20x20x5 MERV 12 Honeywell/Lennox Replacement AC Furnace Air Filters 2 Pack

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Nordic Pure #ad - Replaces honeywell 20x20x4 and filters with an MPR rating with an actual depth of 4 3/8 and ideal for high efficiency air filtration and those with moderate allergies. Nominal size: 20 x 20 x 5 h, actual size: 19 5/8 x 19 7/8 x 4 3/8 19. 63 x 19. 88 x 4. 38. Made in the USA. Nordic pure merv 12 is equivalent to MPR 1500-1900 Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.
BrandNordic Pure #ad
ManufacturerNordic Pure #ad
Height4.38 Inches
Length19.88 Inches
Weight3.12 Pounds
Width19.63 Inches
Part Number20x20x5HM12-2
Model20x20x5HM12-2
WarrantyPlease Contact the seller directly for warranty information about this product

6. Clean Comfort

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Clean Comfort AMP-11-2025-45 2-Pack, 20" x 25" x 4.5" Media Air Filter, MERV 11

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Clean Comfort #ad - Replacement media for clean comfort air cleaner models AM11-2025-FB, AMB11-2025-45. Also replaces honeywell fc100A1037, Lennox Healthy Climate X6673. Filter should be changed once or twice a year based on conditions within the home. Genuine, oem Clean Comfort brand filter. Actual size: 20 3/4" x 24 3/4" x 4 3/8".
BrandClean Comfort #ad
ManufacturerClean Comfort #ad
Height4.5 Inches
Length25 Inches
Width20 Inches
Part Number1

7. Honeywell Home

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Honeywell Home AC Furnace Media Air Filter 16 x 20 x 4 MERV 11 1 pk

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Honeywell Home #ad - New merv 10 at 492 fpm performance with lower pressure drop at no additional cost! Efficiency ratings are based on american Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52. 2 1999! efficiency ranges are defined for small particles, e1=03 to 1. 0 microns; medium particles, E2=1. 0 to 3. 0 microns; and large particles, E3=3. 0 to 100 microns.
BrandHoneywell Home #ad
ManufacturerHoneywell Home #ad
Height20 Inches
Length16 Inches
Weight1 Pounds
Width5 Inches
Part NumberFC100A1003
ModelFC100A1003
Warranty1 Year Limited

8. Filtrete

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MPR 1200, AC Furnace Air Filter, 2-Pack exact dimensions 19.688 x 24.688 x 0.84, Allergen Defense Odor Reduction, Filtrete 20x25x1

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Filtrete #ad - Attracts and captures particles such as lint, pet dander, dust, pollen, smoke and smog. Active carbon layer acts as odor eliminator for pet smells, smoke, cooking, mildew and cleaning chemicals.

Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in. 25 times more effective in odor removal than other national retail home air filters, based on a comparison of organic vapor capacity. Home air filters for your furnace, air conditioner or HVAC system. Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through.
BrandFiltrete #ad
Manufacturer3M #ad
Height1 Inches
Length25 Inches
Weight2 Pounds
Width20 Inches
Part NumberAOR03-2PK-6E
ModelAOR03-2PK-1E
WarrantyThis 3M product will be free from defects in material and manufacture. If this 3M product is defective, your exclusive remedy shall be, at 3M's option, replacement of the 3M product or refund of the purchase price of the 3M product. This warranty gives you specific legal rights, and you may have other rights which may vary from state to state, or country to country. To obtain warranty service, contact 3M at the address listed on the product package.

9. Filtrete

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Micro Allergen Defense, Filtrete 20x25x1, 2-Pack exact dimensions 19.688 x 24.688 x 0.84, MPR 1000, AC Furnace Air Filter

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Filtrete #ad - 1000 mpr has a rating of MERV 11. The higher the mpr, pet dander, the more microparticles--such as pollen, smoke, bacteria and viruses--your filter will capture from the air passing through it. Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. Home air filters for your furnace, air conditioner or HVAC system. Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in. Attracts and captures particles such as lint, pet dander, dust, pollen, smoke and smog.
BrandFiltrete #ad
Manufacturer3M #ad
Height2.5 Inches
Length26 Inches
Weight1.41 Pounds
Width20.38 Inches
Part NumberAD03-2PK-1E
ModelAD03-2PK-1E
WarrantyThis 3M product will be free from defects in material and manufacture. If this 3M product is defective, your exclusive remedy shall be, at 3M's option, replacement of the 3M product or refund of the purchase price of the 3M product. This warranty gives you specific legal rights, and you may have other rights which may vary from state to state, or country to country. To obtain warranty service, contact 3M at the address listed on the product package.