Top 8 20x20x1 Air Filter MERV 4 – Furnace Filters

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1. Filtrete

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

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Filtrete #ad - Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in. Home air filters for your furnace, air conditioner or HVAC system. Attracts and captures particles such as lint, pet dander, pollen, dust, smoke and smog. Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. The higher the mpr, smoke, pet dander, the more microparticles--such as pollen, bacteria and viruses--your filter will capture from the air passing through it.1000 mpr has a rating of MERV 11.
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.

2. Honeywell Home

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Honeywell Home 20x25x4 MERV 8, AC Furnace Air Filter, 1 PACK CF100A1025 Actual Dimensions: 19.94 x 24.87 x 4.38 in.

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Honeywell Home #ad - 20x more effective than typical 1-inch fiberglass filters. Long lasting filtration - Lasts up to 12 months without losing quality over time.

A healthier household - breathe easy in your home with a Honeywell Home 4-Inch High Efficiency Air Cleaner Filter that helps keep hazardous airborne particles out and fresh air flowing in. Easy installation - honeywell Home's easy-to-install air filters make changing out your air filtration unit quick, painless, and mess-free. Recommended use - recommended for homes with pets, homes with smokers, people with allergies, or anyone wanting cleaner air. Merv 8 rating - get exceptional protection against dust, viruses, pollen, bacteria, fungus, and spores.
BrandHoneywell Home #ad
ManufacturerHoneywell Home #ad
Height4.38 Inches
Length24.88 Inches
Weight1 Pounds
Width18.84 Inches
Part NumberCF100A1025/U
ModelCF100A1025/U
Warranty1 Year Limited

3. Filtrete

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

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Filtrete #ad - Attracts and captures particles such as lint, dust, pollen, pet dander, smoke and smog. 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. 25 times more effective in odor removal than other national retail home air filters, based on a comparison of organic vapor capacity. 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.
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.

4. AIRX FILTERS WICKED CLEAN AIR.

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Made in the USA, Box of 6, AIRx ALLERGY 16x20x1 MERV 11 Pleated Air Filter

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AIRX FILTERS WICKED CLEAN AIR. #ad - Multi-pack oem air filter replacement compatible: airx filters 16x20x1 merv 11 air filter can replace and/or comparable with Allergen Defense MPR 1000 1085 1200, Odor Reduction MPR 1200 16x20x1 air filter.

Merv rated replacement air filter: airx filters 16x20x1 actual: 15. 50 x 19. 50 x 075 in merv 11 air filter assures the effectiveness of your home HVAC system resulting to efficient heating, ventilation and air conditioning. Superior air filter replacement construction and specs: airx filters 16x20x1 air filter uses electrostatically charged 100% synthetic gradient media can perform at temperature ranging from 180F 82C continuous service, peak 225F 107C.

Contaminant reducing replacement air filter: airx filters 16x20x1 air filter replacement Actual: 15. 50 x 19. 50 x 075 in traps 1. 0 - 100 micron of particles such as lint, smoke, pollen, dust mite debris, mold spores, pet dander, dust, and smog. High quality air filter replacement material: airx filters 16x20x1 actual: 15. 50 x 19. 50 x 0
BrandAIRX FILTERS WICKED CLEAN AIR. #ad
ManufacturerAiRx #ad
Height0 Inches
Length0 Inches
Weight0.43 Pounds
Width0 Inches
Part NumberALLERGY-162001-6
ModelALLERGY-162001-6
Warranty1 year manufacturer

5. Filtrete

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Filtrete 16x20x1, AC Furnace Air Filter, Allergen Defense Odor Reduction, MPR 1200, 2-Pack exact dimensions 15.719 x 19.719 x 0.84

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Filtrete #ad - Home air filters for your furnace, air conditioner or HVAC system. Attracts and captures particles such as lint, pet dander, dust, pollen, smoke and smog.

Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. 25 times more effective in odor removal than other national retail home air filters, based on a comparison of organic vapor capacity. Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in. Active carbon layer acts as odor eliminator for pet smells, cooking, smoke, mildew and cleaning chemicals.
BrandFiltrete #ad
Manufacturer3M #ad
Height1 Inches
Length20 Inches
Weight1.4 Pounds
Width16 Inches
Part NumberAOR00-2PK-6E
ModelAOR00-2PK-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.

6. 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, e2=1. 0 to 3. 0 microns; and large particles, E1=03 to 1. 0 microns; medium 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

7. Filtrete

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AC Furnace Air Filter, Filtrete 14x20x1, MPR 1500, 4-Pack exact dimensions 13.81 x 19.81 x 0.78, Healthy Living Ultra Allergen

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Filtrete #ad - 1500 mpr has a rating of MERV 12. Change filter at least every 90 days for optimal performance of your your furnace, air conditioner or HVAC system. Lasts up to 3 months. Carries a 1500 microparticle performance rating mpr.

Captures more particles than fiberglass air filters. Attracts and captures microscopic particles such as smoke, including lint, bacteria and viruses--and large particles, cough and sneeze debris, household dust and pollen. Attracts and captures microscopic particles that can carry bacteria and viruses. 90-percentage effective at capturing particles like dust, pollen and mold spores from the air passing through the filter.

The higher the mpr, smoke, the more microparticles--such as pollen, pet dander, bacteria and viruses--your filter will capture from the air passing through it.50-percentage better small particle filtration than our 1000 performance level filter.
BrandFiltrete #ad
ManufacturerFiltrete #ad
Height13.81 Inches
Length19.81 Inches
Weight0.68 Pounds
Width0.78 Inches
Part Number2005-4
Model2005-4
WarrantyCall 1-800-494-3552 for warranty questions

8. 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. Measure your air filter for the exact size and compare it to our actual size to ensure proper fit. Nordic pure merv 10 is equivalent to MPR 1000 Made in the USA. 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)
WarrantyNot applicable.