Top 10 18×20 Air Filter – Furnace Filters

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1. FilterBuy

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Pack of 2 Filters, 18x20x1 – Silver, FilterBuy 18x20x1 MERV 8 Pleated AC Furnace Air Filter

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FilterBuy #ad - Ideal for residential and commercial use. Say hello to better indoor air quality! Synthetic media provides significantly higher particulate efficiency than standard cotton media.

Afb silver merv 8, comparable with mPR 300 / 600 clean living and dust & pollen. High quality: filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Made in the usa: manufactured by FilterBuy in the USA using 100% American made components. Long-lasting: designed to last up to 3 months. Traps 90% of airborne particles: say goodbye to dust, debris, pollen, lint, and pet dander. 18x20x1 merv 8 pleated air filter for ac hvac or furnace pack of 2 filters.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Weight0.86 Pounds
Part NumberAFB18x20x1M8pk2
ModelAFB18x20x1M8pk2

2. Aerostar

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Made in the USA, 6-Pack, Aerostar Allergen & Pet Dander 18x20x1 MERV 11 Pleated Air Filter

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Aerostar #ad - Check your fit - nominal size: 18x20x1; this merv 11 filter is comparable with MPR 1000-1200 & FPR 7. 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.

Improve indoor air quality - protect your family and loved ones with clean indoor air quality at home. 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. 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. Superior filtration efficiency - aerostar filters are made with electrostatically charged synthetic material that draws and captures allergens including lint, mold spores, dust mites, pet dander, pollen, and dust.
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Part Number18x20x1 MERV 11
Model18x20x1 MERV 11

3. FilterBuy

#ad

FilterBuy 18x20x1 MERV 8 Pleated AC Furnace Air Filter, 18x20x1 – Silver, Pack of 4 Filters

#ad
FilterBuy #ad - Afb silver merv 8, comparable with mPR 300 / 600 clean living and dust & pollen. High quality: filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F.

Ideal for residential and commercial use. 18x20x1 merv 8 pleated air filter for ac hvac or furnace pack of 4 filters. Synthetic media provides significantly higher particulate efficiency than standard cotton media. Long-lasting: designed to last up to 3 months. Say hello to better indoor air quality! Made in the usa: manufactured by FilterBuy in the USA using 100% American made components. Traps 90% of airborne particles: say goodbye to dust, pollen, lint, debris, and pet dander.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Part NumberAFB18x20x1M8pk4
ModelAFB18x20x1M8pk4

4. Filtrete

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Filtrete MPR 1000 18x20x1 AC Furnace Air Filter, 4-Pack, Micro Allergen Defense

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Filtrete #ad - A dirty filter will slow down air flow and make the system work harder to keep you warm or cool - wasting energy. 1000 and 1200 mpr also available in 4”, 4” slim fit and 5” air filters.

Outperforms fiberglass, air conditioner, washable and non-electrostatic 3-month pleated 1" home air filters for your furnace, or HVAC system. Sign-up for a filter change reminder program that works for you! 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 1000 mpr microparticle Performance Rating equates to MERV 11. Exclusive filtrete brand 3-in-1 technology from 3M traps unwanted air particles, letting cleaner air flow through. For optimal performance, change your home air filter at least every 90 days for 1” filters, and at least every 12 months for 4” and 5” filters. For residential use only.
BrandFiltrete #ad
ManufacturerFiltrete #ad
Height17.81 Inches
Length19.81 Inches
Weight2 Pounds
Width0.81 Inches
Part Number9845-4PK
Model9845-4
WarrantyCall 1-800-494-3552 for warranty questions

5. AIRx Filters

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

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

6. AIRx Filters

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

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

7. Aerostar

#ad

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

#ad
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. 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.

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. High performing - 100% synthetic electrostatic media for high efficiency with low air flow resistance.

Superior filtration efficiency - aerostar filters are made with electrostatically charged synthetic material that draws and captures allergens including lint, dust mites, pet dander, pollen, mold spores, and dust. Improve indoor air quality - protect your family and loved ones with clean indoor air quality at home. Check your fit - nominal size: 18x20x1; this mERV 8 filter is comparable with MPR 600 & FPR 5.
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Weight3.9 Pounds
Part Number18x20x1 MERV 8
Model18x20x1 MERV 8

8. Filtrete

#ad

Filtrete MPR 300 20x20x1 AC Furnace Air Filter, 6-Pack, Clean Living Basic Dust

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Filtrete #ad - Exclusive filtrate brand 3 in 1 technology from 3M traps unwanted air particles, while letting cleaner air flow through. For residential use only. Attracts and captures large particles such as lint, household dust, dust mite debris and mold spores.

A dirty filter will slow down air flow and make the system work harder to keep you warm or cool wasting energy; Sign up for a filter change reminder program that works for you. Filtrate 300 mpr micro particle Performance Rating equates to MERV 5. The higher the mpr, pet dander, the more micro particles; such as pollen, bacteria and viruses, smoke, your filter will capture from the air passing through it.

Packaging and filter media may vary for MPR 300 Outperforms fiberglass, air conditioner, washable and non electrostatic 3 month pleated 1 inches air filters for your furnace, or HVAC system. For optimum performance, change your home air filter every 90 days or sooner.
BrandFiltrete #ad
ManufacturerFiltrete #ad
Height19.69 Inches
Length19.69 Inches
Weight0.69 Pounds
Width0.81 Inches
Part NumberMPR 300
ModelBD02-6PK-1E
WarrantyLimited Warranty

9. Aerostar

#ad

Made in the USA, Aerostar Home Max 18x20x1 MERV 13 Pleated Air Filter, Captures Virus Particles, 6-Pack

#ad
Aerostar #ad - 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. 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.

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. Superior filtration efficiency - aerostar filters are made with electrostatically charged synthetic material that draws and captures allergens including lint, dust mites, mold spores, pet dander, pollen, and dust.

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. Check your fit - nominal size: 18x20x1; this merv 13 filter is comparable with MPR 1500-1900 & FPR 10 .
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Part Number18x20x1 MERV 13
Model18x20x1 MERV 13

10. Flanders

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18 x 20 x 1-Inch, E-Z Flow Heavy Duty Air Filter, 12-Pack, MERV 4

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Flanders #ad - Merv 4 rating: removes household dust, pollen, and lint. Pack of 12 disposable ul class II rated air filters designed for protection of furnace and central air units. Continuous chipboard design guards against corner separation while the double-sided metal media retainer adds to the filter strength. Each filter maintains efficiency for up to 30 days. Compatible with hvac systems requiring filters sized 18" x 20" x 1".
BrandFlanders #ad
ManufacturerFlanders Corporation #ad
Height20 Inches
Length18 Inches
Width1 Inches
Part Number10255.01182
Model10255.011820