Top 10 Best 4 Inch Furnace Filters – Available On Market

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You can trust our selection for 4 Inch Furnace Filters Reviews. Because We have worked hard studying and analyzing 54896 reviews for 4 Inch Furnace Filters and rating them. It was a difficult job to list only ten products for 4 Inch Furnace Filters where thousands of them available online. I hope it will help you to take final decision for Best 4 Inch Furnace Filters.

Best 4 Inch Furnace Filters
NoProductScoreAction
1Filtrete 20x25x4, AC Furnace Air Filter9.8Buy On Amazon
2Nordic Pure 20x20x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack9.4Buy On Amazon
3Nordic Pure 16x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack9.2Buy On Amazon
4Honeywell Home MicroDefense AC Furnace Air Filter 16 x 25 x 4 MERV 8 (1 pk)9Buy On Amazon
5BestAir PFHW2025-11CR AC Furnace Air Filter9Buy On Amazon
6Honeywell Home 4-inch Ultra Efficiency Air Cleaner Filter8.6Buy On Amazon
7Filterbuy 16x25x4 Air Filter MERV 88.6Buy On Amazon
8Filtrete 16x25x4, AC Furnace Air Filter8.4Buy On Amazon
9Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack8.4Buy On Amazon
10Filterbuy 20x25x4 Air Filter MERV 88.4Buy On Amazon

Table Of Content:

1. Filtrete 20x25x4, AC Furnace Air Filter

  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in.
  • 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.
  • 54% SMALL PARTICLE CAPTURE, like bacteria and particles that carry viruses ( % captured is based on ASHRAE 52.
  • CERTIFIED as asthma & allergy friendly (As outlined in report ASCR: 1246-01)
  • FIND YOUR SIZE: 1550 MPR available in 4 in. , 4 in. slim fit and 5 in. thick air filters
  • FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1in.
  • A dirty filter will slow down air flow and make the system work harder to keep you warm or cool – wasting energy.

2. Nordic Pure 20x20x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack

  • Actual Size: 19 1/2 x 19 1/2 x 3 5/8 (19. 5 x 19. 5 x 3. 63)
  • Attracts indoor allergens, dust, pollen and other airborne contaminants.
  • Hypoallergenic and pleated electrostatic filter material
  • Nordic Pure recommends changing 4″ air filters every 3-6 months
  • Made in the U.S.A

3. Nordic Pure 16x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack

  • Actual Size: 15 1/2 x 24 1/2 x 3 5/8 (15. 5 x 24. 5 x 3. 63)
  • Attracts indoor allergens, dust, pollen and other airborne contaminants.
  • Hypoallergenic and pleated electrostatic filter material. Antimicrobial
  • Nordic Pure recommends changing 4″ air filters every 3-6 months
  • Proudly Made in the USA

4. Honeywell Home MicroDefense AC Furnace Air Filter 16 x 25 x 4 MERV 8 (1 pk)

  • 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.
  • 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.
  • COMPATIBLE AND CONVENIENT – Compatible with all Honeywell products, April ire and Space -Gard models 2200 and 2251, and Trion Air Bear 20 x 24 air cleaners.
  • DIMENSIONS – Nominal size) 16 x 25 x 4 inches. Actual size) 15. 838 x 24. 875 x 4. 375 inches

5. BestAir PFHW2025-11CR AC Furnace Air Filter

  • Helps Control Odors
  • Improves Indoor Air Quality
  • Filters airborne particles that can trigger asthma attacks and others
  • Package dimensions : 20.25 inches (H) x 25.25 inches (L) x 15.25 inches (W)

6. Honeywell Home 4-inch Ultra Efficiency Air Cleaner Filter

  • A HEALTHIER HOUSEHOLD – Breathe easy in your home with a Honeywell Home 4-Inch Ultra Efficiency Air Cleaner Filter that helps keep hazardous airborne particles out and fresh air flowing in.
  • MERV 12 RATING – Get exceptional protection against dust, viruses, bacteria, fungus, pollen, and spores.
  • 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.
  • COMPATIBLE AND CONVENIENT – Compatible with April ire and Space -Gard models 2200 and 2252, Skuttle DB-25-20, and Trion Air Bear 20 x 25 inch air cleaners.
  • DIMENSIONS – Nominal size) 16 x 25 x 4 inches / Actual Size) 15. 838 x 24. 875 x 4. 375 inches

7. Filterbuy 16x25x4 Air Filter MERV 8

  • 16x25x4 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 15.
  • 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.
  • 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

8. Filtrete 16x25x4, AC Furnace Air Filter

  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in.
  • 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.
  • FIND YOUR SIZE: 1000 MPR available in 4in. , 4in. slim fit and 5in. thick air filters
  • FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1 in.
  • A dirty filter will slow down air flow and make the system work harder to keep you warm or cool–wasting energy.
  • FOR RESIDENTIAL use only
  • CREATE A CHANGE COUNTDOWN in the Filtrete Smart app.

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

  • 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)
  • Attracts indoor allergens, dust, pollen and other airborne contaminants.
  • Hypoallergenic and pleated electrostatic filter material. Lead/Handling Time – 5
  • Nordic Pure recommends changing 4″ air filters every 3-6 months
  • Proudly Made in the USA

10. Filterbuy 20x25x4 Air Filter MERV 8

  • 20x25x4 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 19.
  • 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.
  • 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

4 Inch Furnace Filters Buying Guide


Does the thought of finding a great 4 Inch Furnace Filters stress you out? Has your mind been juggling between choices when it comes to buying 4 Inch Furnace Filters in general, specifically regarding which model to choose?
If that’s the case, know that you’re not alone. Many people find it tough to buy the perfect 4 Inch Furnace Filters for themselves. We understand the stress associated with the buying process!
Since you’re here, you are obviously curious about 4 Inch Furnace Filters Reviews. You’ve been bombarded with information, so you need to find a reputable source with credible options before you make any decisions on which product would be best for your needs.
There are many sources that’ll provide you with that information- buying guides or ratings websites, word-of-mouth testimonials from friends or family members, online forums where users share their personal experiences, product reviews specifically found all over the internet and YouTube channels. Only thorough research will ensure that you get the right product.
But that’s not always easy, right? That's why we've taken time to compile a list of the best 4 Inch Furnace Filters in today's market, on your behalf, so that there will be no more worries for you.
How did we come up with the list, you ask? How did we create this buying guide?
  • First, our algorithms collected as much information available about these products from trusted sources.
  • We employed both Artificial Intelligence and large data volume to validate all collected information.
  • Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best 4 Inch Furnace Filters currently on the market!
The products aren’t chosen randomly. We consider several criteria before assembling a list. Some of the criteria are discussed below-
  1. Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.
Top 4 Inch Furnace Filters brands try to offer some unique features that make them stand out in the crowd. Thus hopefully, you’ll find one ideal product or another in our list.
  1. Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top 4 Inch Furnace Filters based on that.
  2. Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.
  3. Customer Ratings: The hundreds of customers using the 4 Inch Furnace Filters before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.
  4. Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the 4 Inch Furnace Filters they used.
  5. Seller Rank: Now, this is interesting! You don’t just need a good 4 Inch Furnace Filters, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.
  6. Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your 4 Inch Furnace Filters before putting them on the list.
  7. Durability: Durability and reliability go hand to hand. A robust and durable 4 Inch Furnace Filters will serve you for months and years to come.
  8. Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good 4 Inch Furnace Filters if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.
  9. Negative Ratings: Yes, we take that into consideration too! When we pick the top rated 4 Inch Furnace Filters on the market, the products that got mostly negative ratings get filtered and discarded.

These are the criteria we have chosen our 4 Inch Furnace Filters on. Does our process stop there? Heck, no! The most important thing that you should know about us is, we're always updating our website to provide timely and relevant information.
Since reader satisfaction is our utmost priority, we have a final layer of filtration. And that is you, the reader! If you find any 4 Inch Furnace Filters featured here Incorrect, irrelevant, not up to the mark, or simply outdated, please let us know. Your feedback is always welcome and we’ll try to promptly correct our list as per your reasonable suggestion.

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