Top 10 Best air filter 20x20x1 in 2026

Last Updated - 6/18/2026

🏆Best Choice

Simply

Simply 20x20x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 19.75"x19.75"x0.75") DUST, Pet, & Allergy Control

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Universally Compatible: Measuring 20" x 20" x 1", with an actual size of 19.75"x19.75" x 0.75", Simply Filters works with almost any brand. Comparable to 3M Filtrete MPR 600, Filterbuy AFB Silver, and Honey well FPR 5.
•Cleaner Air Everywhere: Our filters capture dust, mold, pet dander, and pollen in homes, offices, schools, hospitals, and commercial spaces, trapping 90% of airborne particles, promoting a healthier living environment with clean and fresh indoor air.
•Advanced Pleated Technology: With a higher pleat count than most retail, our meticulously crafted filters offer superior capture coverage, optimizing airflow and efficiency.
•Long-lasting Filtration & Easy Installation: Enjoy up to 3 months of resilient filtration. Hassle-free replacement for air conditioning units or HVAC systems. Follow airflow arrows and insert into the filter slot for central units or return grilles.
•Made in USA: Our filters are made using 100% American components, including recycled materials, ensuring superior performance and quality. Experience exceptional filtration and support local manufacturing.

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$34.91

$38.97

-10%

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Filterbuy

Filterbuy 20x20x1 Air Filter MERV 8 (MPR 700) Dust Defense Replacement (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 19.50 x 19.50 x 0.75)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•UNIVERSAL COMPATIBILITY: 20x20x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 19.50" x 19.50" x 0.75")
•MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow
•LASTING FILTRATION: Electrostatically charged media with 14 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for best results)
•SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform basic cardboard designs by improving durability and resisting extreme temperatures
•MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality you can trust

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$30.96

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Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 19.719 x 19.719 x 0.84 in)

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•MAKE YOUR HOME YOUR SANCTUARY: 2-pack of 3-month pleated 1” Filtrete 20x20x1 MPR 1000 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
•DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 19.69 x 19.69 x 0.81
•EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
•COUNTLESS PARTICLES: With a 1000 MPR and MERV 11 rating, your air filter will help capture many microparticles from the air passing through it
•VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system
•CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days
•SUBSCRIBE AND SAVE: On your first order, simply click on Subscribe and Save" to set up your delivery schedule and save up to 10% on your orders

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$23.98

$33.35

-28%

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Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size 19.69x19.69x0.81 in)

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•MAKE YOUR HOME YOUR SANCTUARY: 6-pack of 3-month pleated Filtrete 20x20x1 MPR 300 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
•DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 19.69 x 19.69 x 0.81
•EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
•COUNTLESS PARTICLES: With a 300 MPR and MERV 5 rating, your Filtrete Filter will help capture many particles from the air passing through it
•VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system
•CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days
•SMART APP: Use the Filtrete Smart App (iOS or Android) to set 30-, 60- or 90-day reminders to change your air filter
•MOST TRUSTED: Filtrete Brand is North America’s most trusted brand of HVAC Filters, based on 2024 Sago US Brand Health Survey of Residential HVAC Air Filters

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$39.99

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Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4 Pack (Actual Size 19.69 x 19.69 x 0.81 in)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•MAKE YOUR HOME YOUR SANCTUARY: 4-pack of 3-month pleated Filtrete 20x20x1 MERV 11 MPR 1000 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
•EXCLUSIVE TECHNOLOGY: Designed with Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
•COUNTLESS MICROPARTICLES: With a 1000 MPR and MERV 11 rating, your Filtrete Filter will help capture many microparticles from the air passing through it
•CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (2) and helps capture dust, lint and other allergens in your household air
•CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days
•VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system
•SMART APP: Use the Filtrete Smart App (iOS or Android) to set 30-, 60- or 90-day reminders to change your air filter
•MOST TRUSTED: Filtrete Brand is North America’s most trusted brand of HVAC Filters, based on 2024 Sago US Brand Health Survey of Residential HVAC Air Filters

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$48.76

$59.75

-18%

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Amazon Basics

Amazon Basics 20x20x1 Air Filter 6 Pack, MERV 11 AC Furnace Filters (Actual Size: 19.75 x 19.75 x .75)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•ENHANCED AIR QUALITY: Merv 11 rating air filters effectively captures household irritants like lint, dust, and pollen, to help provide cleaner and healthier air in your home
•IMPROVED FURNACE EFFICIENCY: Designed to promote furnace efficiency and optimization, this furnace air filter traps particles that can cause system wear and tear
•DURABLE CONSTRUCTION: Made with a beverage board frame and wire mesh support, this home air filter provides reliable, long-lasting performance
•ELECTROSTATICALLY CHARGED MATERIAL: The air filters are made with synthetic material that is electrostatically charged to attract and capture allergens as small as 3 microns
•CONVENIENT 6-PACK: This convenient 6-pack of air conditioner filters provides you with replacements on hand for up to 12 months with regular changes every 60 to 90 days

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$35.99

$38.13

-6%

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Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 12, MPR 1500, CERTIFIED asthma & allergy friendly, 3 Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2-Pack (Actual Size 19.69x19.69x0.78 in)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•MAKE YOUR HOME YOUR SANCTUARY: 2-pack of 3-month pleated Filtrete 20x20x1 MERV 12 MPR 1500 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
•EXCLUSIVE TECHNOLOGY: Designed with Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
•COUNTLESS MICROPARTICLES: With a 1500 MPR and MERV 12 rating, as well as a 54% small particle capture rate (1), your Filtrete Filter will help capture many microparticles from the air passing through it
•CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (2) and helps capture dust, lint and other allergens in your household air
•VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system
•CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days
•SMART APP: Use the Filtrete Smart App (iOS or Android) to set 30-, 60- or 90-day reminders to change your air filter
•MOST TRUSTED: Filtrete Brand is North America’s most trusted brand of HVAC Filters, based on 2024 Sago US Brand Health Survey of Residential HVAC Air Filters

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$42.24

$46.59

-9%

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Aerostar

Aerostar 20x20x1 MERV 8 - 4 Count - High Efficiency Pleated HVAC, Furnace & Air Conditioner Filters - Removes Dust, Lint, Mold & Allergy-Causing Pollen

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Nominal size: 20x20x1; Actual size: 19 3/4"x19 3/4"x3/4"; This MERV 8 filter is comparable with MPR 600 & FPR 5
•Designed to filter microscopic particles such as lint, dust mites, spores, and pollen
•Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
•100% synthetic electrostatic media for high efficiency with low air flow resistance
•Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

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$26.31

$29.28

-10%

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Aerostar

Aerostar 20x20x1 MERV 8 - 6 Count - High Efficiency Pleated HVAC, Furnace & Air Conditioner Filters - Removes Dust, Lint, Mold & Allergy-Causing Pollen

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Nominal size: 20x20x1; Actual size: 19 3/4" x 19 3/4" x 3/4"; This MERV 8 filter is comparable with MPR 600 & FPR 5.
•Designed to filter microscopic particles such as lint, dust mites, spores, and pollen
•Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
•100% synthetic electrostatic media for high efficiency with low air flow resistance
•Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

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$34.22

$39.84

-14%

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TRIGHTFILTERS

TRIGHTFILTERS 20x20x1 Air Filter 2 Pack, Durable MERV 8 Pleated Home HVAC AC Furnace Filters, Lightweight Compact Air Conditioner Filter Replacement

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•TOP PERFORMANCE - TRIGHTFILTERS 20x20x1 air filter are made of durable thickened white cardboard that strengthens the overall structure without collapsing, providing better capture range and more consistent high-performance filtration with no noise during use. actual size: 19.8x19.8x0.79in
•HIGH-EFFICIENCY FILTRATION - MERV 8 replacement filters have more pleats compared to most retail home air filters and merv8 has better air permeability relative to another Merv rating, providing better airflow and efficiency and protecting your machine from damage and extending the life of your machine
•CAPTURES TINY PARTICLES - MERV 8 AC 20 20 1 furnace air filters comparable with MPR 600, FPR 5, keep trapping 92% of particles as small as 0.5 microns in the air and filter off such as household dust, microscopic particles, lint, dust mites, spores, and pollen, while allowing cleaner air to flow through, giving you a more comfortable and healthy environment
•WIDE COMPATIBILITY - AC filters are suitable for furnaces, air conditioners, HVAC filters and house vents. Our compact and stable home filters are not only good for your health but also can save you thousands of dollars in repairs and lower monthly energy bills, making them ideal for anyone who wants clean and fresh air
•EASY TO USE - Installing or replacing our 20x20x1 air filters for AC units or furnaces is as simple as it gets. First, you need to turn off your stove, and then Simply slide the filter into the air filter return device as indicated by the arrow to done! for optimal performance of your heating or cooling or HVAC system, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months

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$25.64

$26.99

-5%

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