Top 10 18x20x1 Furnace Filter – Furnace Filters

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1. Aerostar

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6 Pack Actual Size: 17 3/4"x 19 3/4" x 3/4", AC Furnace Air Filter, Aerostar 18x20x1 MERV 8 Pleated Air Filter

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Aerostar #ad - Manufactured in the usa by filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive.

Simple to install and a cost-effective step towards a healthier home environment. 100% synthetic electrostatic media for high efficiency with low air flow resistance. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months. Nominal size: 18x20x1; actual size 17 3/4"x 19 3/4" x 3/4"; this merv 11 filter is comparable with MPR 1000-1200 & FPR 7. Designed to filter microscopic particles such as lint, dust mites, spores, fine dust, pollen, pet dander, and smoke.
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Height0.75 Inches
Length17.75 Inches
Width19.75 Inches
Part Number18x20x1 MERV 11
Model18x20x1 MERV 11

2. AIRX FILTERS WICKED CLEAN AIR.

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Made in the USA, Box of 6, AIRx ALLERGY 18x20x1 MERV 11 Pleated Air Filter

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AIRX FILTERS WICKED CLEAN AIR. #ad - Merv 11 furnace filter premium pleated filter, actual size 17. 5" x 19. 5" x. 75". Compare to 3m filtrete micro particle MPR800 and Filtrete allergen MPR1200 filters. More pleats than most retail air filters - better energy efficiency and captures more particles. Made in USA. Traps mold, smoke particles, pet dander, pollen and dust mite debris for allergen protection.
BrandAIRX FILTERS WICKED CLEAN AIR. #ad
ManufacturerAiRx #ad
Height0.75 Inches
Length17.5 Inches
Weight0.58 Pounds
Width19.5 Inches
Part NumberALLERGY-182001-6
ModelALLERGY-182001-6
Warranty1 year manufacturer

3. Aerostar

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Aerostar Clean House 18x20x1 MERV 8 Pleated Air Filter, Made in the USA, 6-Pack,White

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Aerostar #ad - 100% synthetic electrostatic media for high efficiency with low air flow resistance. Simple to install and a cost-effective step towards a healthier home environment.

Designed to filter microscopic particles such as lint, spores, dust mites, and pollen. Manufactured in the usa by filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months. Nominal size: 18x20x1; actual size 17 3/4"x 19 3/4" x 3/4"; this mERV 8 filter is comparable with MPR 600 & FPR 5.
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Height0.75 Inches
Length17.75 Inches
Width19.75 Inches
Part Number18x20x1 MERV 8
Model18x20x1 MERV 8

4. Aerostar

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Captures Virus Particles, 6-Pack Actual Size: 17 3/4" x 19 3/4" x 3/4", Aerostar 18x20x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter

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Aerostar #ad - Aerostar filters are a simple to install and cost-effective step towards a healthier home environment, free of airborne allergens and particles that can trigger various allergy and asthma symptoms. Designed to filter microscopic particles such as lint, spores, smoke, viruses, dust mites, fine dust, pet dander, pollen, and bacteria.

Check your fit - nominal size: 18x20x1; actual size 17 3/4"x 19 3/4" x 3/4"; this MERV 13 filter is comparable with MPR 1500-1900 & FPR 10 . Made in the usa - aerostar filters are manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions for residential, commercial and industrial applications.

Improve indoor air quality - protect your family and loved ones with clean indoor air quality at home. High performing - 100% synthetic electrostatic media for high efficiency with low air flow resistance. For best results, change your filters every 60 to 90 days during normal times of year but increase frequency to 30 days during peak summer and winter months when your unit is working the hardest.
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Height1 Inches
Length18 Inches
Width20 Inches
Part Number18x20x1 MERV 13
Model18x20x1 MERV 13

5. FilterBuy

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Silver, FilterBuy 18x20x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters 4-Pack

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FilterBuy #ad - Merv 8 synthetic media comparable with mpr 600 & FPR 5 protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow.

18x20x1 replacement air filters for your furnace, air conditioner, or HVAC system actual size: 17. 50 x 19. 5 x 075 inches. All components are manufactured within the United States and designed with recyclable materials. Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs. High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height0.75 Inches
Length17.5 Inches
Width19.5 Inches
Part NumberAFB18x20x1M8pk4
ModelAFB18x20x1M8pk4

6. Filtrete

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Clean Living Basic Dust, 6-Pack exact dimensions 19.81 x 23.81 x 0.81, AC Furnace Air Filter, MPR 300, Filtrete 20x24x1

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Filtrete #ad - Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1" air filters for your furnace, air conditioner, or HVAC system. A dirty filter will slow down air flow and make the system work harder to keep you warm or cool - wasting energy.

Exclusive filtrete brand 3-in-1 technology from 3M traps unwanted air particles, while letting cleaner air flow through. 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. Filtrete 300 mpr microparticle Performance Rating equates to MERV 5.

Sign-up for a filter change reminder program that works for you! Packaging and filter media may vary for MPR 300 Attracts and captures large particles such as lint, household dust, dust mite debris and mold spores. For optimum performance, change your home air filter every 90 days or sooner. Made of polypropylene. For residential use only.
BrandFiltrete #ad
ManufacturerFiltrete #ad
Height19.81 Inches
Length23.81 Inches
Weight1 Pounds
Width0.81 Inches
Part NumberMPR 300
ModelBD26-6PK-2E

7. AIRX FILTERS WICKED CLEAN AIR.

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Box of 6, AIRx DUST 18x20x1 MERV 8 Pleated Air Filter, Made in the USA

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AIRX FILTERS WICKED CLEAN AIR. #ad - Traps dust, lint using electrostatic air filter media, pollen, lasts 90 days in most homes. Merv 8 furnace filter premium pleated filter, actual size 17. 5" x 19. 5" x. 75". Compare to 3m filtrete clean living and dust and pollen MPR300 and MPR600 filters. Better airflow and efficiency, by using more pleats than most retail air filters. Made in USA.
BrandAIRX FILTERS WICKED CLEAN AIR. #ad
ManufacturerAiRx #ad
Height0.75 Inches
Length17.5 Inches
Weight0.58 Pounds
Width19.5 Inches
Part NumberDUST-182001-6
ModelDUST-182001-6
Warranty1 year manufacturer

8. FilterBuy

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Silver, FilterBuy 18x20x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters 2-Pack

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FilterBuy #ad - All components are manufactured within the United States and designed with recyclable materials. Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs.

Merv 8 synthetic media comparable with mpr 600 & FPR 5 protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow. High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models. 18x20x1 replacement air filters for your furnace, air conditioner, or HVAC system actual size: 17. 50 x 19. 5 x 075 inches.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height0.75 Inches
Length17.5 Inches
Weight0.86 Pounds
Width19.5 Inches
Part NumberAFB18x20x1M8pk2
ModelAFB18x20x1M8pk2

9. Flanders

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Precisionaire Furnace Air Filter 18 " X 20 " X 1 " Fiberglass

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Flanders #ad - Effective Against Dust/Lint. 18 x 20 x 1 in. Pack of 12. Ez flow ii spun Fiberglass Disposable Furnace Filter. Up to merv rating 4, 30 Day Filter. Flat panel, no Metal Media Retainers.
BrandFlanders #ad
ManufacturerFlanders-Precisionaire #ad
Height1 Inches
Length18 Inches
Weight0.43 Pounds
Width20 Inches
Part Number10055-011820
ModelTRVAL54468

10. Filtrete

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Filtrete 16x20x1, MPR 1000, 2-Pack exact dimensions 15.719 x 19.719 x 0.84, Micro Allergen Defense, AC Furnace Air Filter

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Filtrete #ad - When the lifespan is up, change your home air filter at least every 90 days for 1 in. Home air filters for your furnace, air conditioner or HVAC system. Thick air filters. For optimal performance of your heating & cooling system or HVAC system, the more microparticles--such as pollen, pet dander, you'll get a notification to change your filter.

Simply use the app to scan the barcode on your filter's packaging, bacteria and viruses--your filter will capture from the air passing through it. Find your size: 1000 MPR available in 4in. Then choose 30, 60 or 90 days for your replacement countdown. Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through.

Slim fit and 5in. Sign-up for a filter change reminder program that works for you!for residential use only. Create a change coUNTDOWN in the Filtrete Smart app. The higher the mpr, and at least every 12 months for 4 in. Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in. 1000 mpr has a rating of MERV 11. Filters, smoke, 4in.
BrandFiltrete #ad
Manufacturer3M US #ad
Height2.5 Inches
Length16.38 Inches
Weight0.92 Pounds
Width21 Inches
Part NumberAD00-2PK-6E
ModelAD00-2PK-6E
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.