Are you looking for the 20x25x4 air filter? Do you know what to consider before buying one? Well, we’ve managed to put together a list of the best 20x25x4 air filter for your consideration. You can choose one and use it according to your needs.

In most cases, customers lack knowledge about market conditions, which leads to poor purchasing decisions. Fortunately, you have come to the right place as we will present you with a complete guide on how to select the 20x25x4 air filter for you. We have searched for hours and spent a lot of time and effort making sure you get a good return on your hard-earned money.

You can find a quick comparison and a list of the top 20x25x4 air filter below if you’re short on time.

Our Premium Picks!

EDITOR’S CHOICE
9.7
Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack

Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack

PREMIUM PICK
9.6
Filtrete 20x25x4, AC Furnace Air Filter, MPR 1000 DP, Micro Allergen Defense Deep Pleat, 2-Pack (actual dimensions 19.88 x 24.63 x 4.31)

Filtrete 20x25x4, AC Furnace Air Filter, MPR 1000 DP, Micro Allergen Defense Deep Pleat, 2-Pack (actual dimensions 19.88 x 24.63 x 4.31)

PREMIUM CHOICE
9.1
Aerostar 20x25x4 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2″x24 1/2″x3 3/4″)

Best 20x25x4 air filter

Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack

EDITOR’S CHOICE

Specifications:

Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack

$38.70  in stock
2 new from $38.70
Free shipping
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • 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)
  • Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.
  • 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)
  • Nordic Pure MERV 12 is equivalent to MPR 1500-1900
  • Made in the USA

Filtrete 20x25x4, AC Furnace Air Filter, MPR 1000 DP, Micro Allergen Defense Deep Pleat, 2-Pack (actual dimensions 19.88 x 24.63 x 4.31)

PREMIUM PICK

Specifications:

Filtrete 20x25x4, AC Furnace Air Filter, MPR 1000 DP, Micro Allergen Defense Deep Pleat, 2-Pack (actual dimensions 19.88 x 24.63 x 4.31)

$44.99  in stock
2 new from $44.99
3 used from $41.39
Free shipping
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. 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
  • ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog
  • 1000 MPR has a rating of MERV 11
  • The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it

Aerostar 20x25x4 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2″x24 1/2″x3 3/4″)

PREMIUM CHOICE

Specifications:

Aerostar 20x25x4 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2"x24 1/2"x3 3/4")

$72.77  in stock
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • Nominal size: 20x25x4; Actual size: 19 1/2"x24 1/2"x3 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. Replace 3"-5" filters every 3-6 months.
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

Filtrete 20x25x4(SlimFit), AC Furnace Air Filter, MPR 1550 DP, Healthy Living Ultra Allergen Deep Pleat, 2-Pack (actual dimensions 19.5 x 24.5 x 3.75)

Specifications:

Filtrete 20x25x4(SlimFit), AC Furnace Air Filter, MPR 1550 DP, Healthy Living Ultra Allergen Deep Pleat, 2-Pack (actual dimensions 19.5 x 24.5 x 3.75)

$67.99
$59.94
 in stock
3 new from $59.94
5 used from $35.51
Free shipping
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. 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
  • ATTRACTS AND CAPTURES microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses - and large particles, including lint, household dust and pollen
  • 1550 MPR has a rating of MERV 12
  • The higher the MPR, the more microparticles - such as pollen, pet dander, smoke, bacteria and viruses - your filter will capture from the air passing through it

Aerostar 20x25x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6-Pack (Actual Size: 19 1/2″x24 1/2″x3 3/4″)

Specifications:

Aerostar 20x25x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6-Pack (Actual Size: 19 1/2"x24 1/2"x3 3/4")

$95.94  in stock
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • Nominal size: 20x25x4; Actual size: 19 1/2"x24 1/2"x3 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, pollen, pet dander, fine dust, and smoke
  • Simple to install and a cost-effective step towards a healthier home environment. Replace 3"-5" filters every 3-6 months.
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

BestAir HW2025-11R Air Cleaning Furnace Filter, MERV 11, Removes Allergens & Contaminants, For Honeywell Models, 20″ x 25″ x 4″, Single Pack

Specifications:

BestAir HW2025-11R Air Cleaning Furnace Filter, MERV 11, Removes Allergens & Contaminants, For Honeywell Models, 20" x 25" x 4", Single Pack

$35.99
$21.56
 in stock
7 new from $21.56
Free shipping
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • Filters out unwanted particles including dust lint, mold particles, pollen, bacteria, and virus carriers while allowing cleaner air to flow through
  • Designed to perform with high efficiency and minimum pressure drop; conserving energy and lowering costs
  • Minimum Efficiency Reporting Value (MERV) of 11; generating better filtration with fewer particles and contaminants that pass through the filter
  • Using our best tech and design, this BestAir Filter is manufactured to trap up to 95% of Airborne Particles from 0. 3 to 10. 0 microns; Long life filter design for long lasting performance up to 12 months

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

Specifications:

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

$28.56  in stock
3 new from $28.56
5 used from $25.84
Free shipping
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • 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
  • MERV 8 RATING - Get exceptional protection against dust, viruses, bacteria, fungus, pollen, and spores. 20x more effective than typical 1-inch fiberglass filters
  • RECOMMENDED USE - Recommended for homes with pets, people with allergies, homes with smokers, or anyone wanting cleaner air
  • LONG LASTING FILTRATION - Lasts up to 12 months without losing quality over time
  • EASY INSTALLATION - Honeywell Home's easy-to-install air filters make changing out your air filtration unit quick, painless, and mess-free.

Honeywell FC100A1037 20″x25″x4″ Merv 11 Filter Media,(Packaging may vary) Pack of 5

Specifications:

Honeywell FC100A1037 20"x25"x4" Merv 11 Filter Media,(Packaging may vary) Pack of 5

$140.99  in stock
10 new from $140.76
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • Replacement media air cleaner filter
  • Helps remove small particles from the air
  • Meets industry safety standards
  • Measurements are 20 x 25 inches
  • Longevity (months)- 12

Nordic Pure 20x25x4 MERV 10 Pleated AC Furnace Air Filters 2 Pack

Specifications:

Nordic Pure 20x25x4 MERV 10 Pleated AC Furnace Air Filters 2 Pack

$37.79  in stock
2 new from $37.79
Free shipping
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • 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)
  • Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.
  • 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)
  • Nordic Pure MERV 10 is equivalent to MPR 1000
  • Made in the USA

Filterbuy 20x25x4 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (6-Pack, Platinum)

Specifications:

Filterbuy 20x25x4 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (6-Pack, Platinum)

$123.24  in stock
Amazon.com
as of June 8, 2022 10:04 pm

Features

  • 20x25x4 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.38 x 24.38 x 3.63 inches)
  • MERV 13 synthetic media (comparable with MPR 1500-1900 & FPR 10) protects homes from bacteria and more by trapping 98% 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials