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Best furnace filters - May 2026

Last Updated - May 18, 2026

1
Best Choice
17% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Aprilaire
17% Off

AprilAire 410 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 11, Clean Air & Dust, 16x25x4 Air Filter (Pack of 2)

Aprilaire

$93.44

$112.99
(17% Off)

More Details
Main highlights
- VACUUM AND DUST LESS OFTEN by preventing airborne particles from settling on your furniture and flooring. This AprilAire 410 replacement air filter removes airborne particles as they pass through the MERV 11 filter including dust, pollen, mold, spores, bacteria, and pet dander.
- PROUD PARTNER OF THE AMERICAN LUNG ASSOCIATION in support of its mission to save lives by improving lung health and preventing lung disease
- NOMINAL AIR FILTER SIZE of 16 x 25 x 4 inches (nominal size is an industry standard filter size system to help you easily identify the correct replacement filter and is not the actual size)
- EASY AS 1-2-3 TO INSTALL in the unique AprilAire Interlock Rail System. Unpack. Slide in. Close the door. Done. No assembly or cardboard or metal reinforcements needed.
- BUY WITH CONFIDENCE This genuine AprilAire 410 replacement air filter was designed and manufactured in the USA by AprilAire – the leader in indoor air quality solutions – to optimize the performance of your AprilAire Air Purifier Model: 1410, 1610, 2140, 2400, 2410, 2416, 3410, 4400, or Space-Gard 2400 with Upgrade Kit 1413
- BETTER PERFORMANCE thanks to the patented AprilAire Self-Seal Technology which minimizes the amount of air bypassing the filter
$93.44
$112.99 (17% Off)
2
Best Value
20% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Filtrete
20% Off

Filtrete 16x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 4-Pack, Fits Lennox & Honeywell, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 15.88 x 24.56 x 4.31 in)

Filtrete

$61.16

$76.75
(20% Off)

More Details
Main highlights
- SMART APP: Use the Filtrete Smart App (iOS or Android) to set 90-, 180- or 365-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
- MAKE YOUR HOME YOUR SANCTUARY: 1000 MPR + MERV 11 rating helps capture up to 2X more microparticles than MERV alone(2)
- EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
- DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 15.88 in x 24.56 in x 4.31 in, This item is a 4-pack of a 12-month Filtrete Air Filter
- DESIGNED TO FIT: Honeywell and Lennox brand media air cleaners
- CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your 4-inch filter at least once every 12 months
- CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (2) and helps capture dust, lint and other allergens in your household air
$61.16
$76.75 (20% Off)
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Filtrete

Filtrete 16x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Lennox & Honeywell, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 15.88x24.56x4.31 in)

Filtrete

$45.06

More Details
Main highlights
- SMART APP: Use the Filtrete Smart App (iOS or Android) to set 90-, 180- or 365-day reminders to change your air filter
- RECYCLED CONTENT: Verified to contain at least 50% recycled content by GreenCircle Certified, a third-party auditor
- 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
- MAKE YOUR HOME YOUR SANCTUARY: 1000 MPR + MERV 11 rating helps capture up to 2X more microparticles than MERV alone(2)
- EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
- DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 15.88 in x 24.56 in x 4.31 in, This item is a 2-pack of 12-month Filtrete Air Filters
- DESIGNED TO FIT: Honeywell and Lennox brand media air cleaners
- CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your 4-inch filter at least once every 12 months
- CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (2) and helps capture dust, lint and other allergens in your household air
$45.06
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Filtrete

Filtrete 16x20x1 Air Filter MERV 5, 6-Pack AC Furnace HVAC Filters for Home, MPR 300 Basic Dust Defense, Pleated Electrostatic Removes Lint & Dust (Actual Size 15.69x19.69x0.81 in)

Filtrete

$33.84

More Details
Main highlights
- 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
- MAKE YOUR HOME YOUR SANCTUARY: 6-pack of 3-month pleated Filtrete 16x20x1 MPR 300 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
- EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
- DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 15.69 x 19.69 x 0.81
- COUNTLESS PARTICLES: With a 300 MPR and MERV 5 rating, your Filtrete Filter will help capture many particles from the air passing through it
- CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days
- 16x20x1 AIR FILTER FOR FURNACE & AC SYSTEMS - Filtrete MERV 5 furnace filters designed for standard HVAC systems. Each 6-pack includes filters with actual dimensions 15.69" x 19.69" x 0.81." Compatible with furnace and air conditioner units requiring 16x20x1 size filters for whole air filtration
$33.84
5
18% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Aprilaire
18% Off

Genuine AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 16x25x4 Air Filter (Pack of 1)

Aprilaire

$53.36

$64.99
(18% Off)

More Details
Main highlights
- Worry-Free – We stand behind the performance of our 413 Air Filter with our 10-year Clean-Coil Commitment
- The AprilAire 413 removes up to 97% of common allergens and 92% of viruses* *Virus performance results based on controlled testing in accordance with ASHRAE 52.2 test standard using the MS-2 virus
- Supporting Your AprilAire Healthy Air System – Genuine AprilAire 413 Filters are used with the AprilAire Air Purifier (part of the AprilAire Healthy Air System) to guarantee sufficient filtration of the contaminants in the air
- Proud Partner of American Lung Association in support of its mission to save lives by improving lung health and preventing lung disease. The American Lung Association does not endorse any product, device, or service.
- Long Filter Life – Easy maintenance with 12-month filter life. Change the AprilAire 413 Filter annually to maintain peak performance.
- Healthy Air App – Download the Healthy Air App (App Store or Google Play compatible) to schedule reminders for 413 AprilAire Replacement Filter and learn more about maintaining Indoor Air Quality
- Genuine AprilAire 413 Filters are engineered to the exact specifications of your AprilAire Air Purifier, delivering superior filtration, a perfect airtight fit and seal, and the best overall system protection. To maintain peak performance, always choose certified AprilAire Replacement Filters.
- Energy Efficiency – The AprilAire 413 lasts up to 2X longer* for fewer replacements and less strain on your HVAC system, saving you money
- Buy With Confidence – Genuine AprilAire 413 Air Filters are designed and made in the USA by AprilAire, the leader in Indoor Air Quality solutions for the home since 1954
- Advanced Purification – The AprilAire 413 Replacement Filter removes 15% more harmful particles compared to minimum MERV 13 requirement* *Testing was verified by 3rd party lab. All results follow ASHRAE 52.2 2017 Testing Method.
$53.36
$64.99 (18% Off)

Best furnace filters - May 2026

AprilAire 410 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 11, Clean Air & Dust, 16x25x4 Air Filter (Pack of 2)

Filtrete 16x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 4-Pack, Fits Lennox & Honeywell, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 15.88 x 24.56 x 4.31 in)

Filtrete 16x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Lennox & Honeywell, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 15.88x24.56x4.31 in)

Filtrete 16x20x1 Air Filter MERV 5, 6-Pack AC Furnace HVAC Filters for Home, MPR 300 Basic Dust Defense, Pleated Electrostatic Removes Lint & Dust (Actual Size 15.69x19.69x0.81 in)

Genuine AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 16x25x4 Air Filter (Pack of 1)

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AprilAire 213 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 20x25x4 Air Filter (Pack of 1)

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