20 Best 18x25x1 Furnace Filters [2024]

Are you looking for the best 18x25x1 furnace filters? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 18x25x1 furnace filters.

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1 Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (4-Pack, Silver) Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (4-Pack, Silver)
2 Nordic Pure 18x25x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack Nordic Pure 18x25x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack
3 True Blue Allergen 18x25x1 Air Filter , MERV 11, 4-Pack True Blue Allergen 18x25x1 Air Filter , MERV 11, 4-Pack
4 Flanders/Precisionaire 10055.011825 Fiberglass Furnace Filter (Pack of 12) Flanders/Precisionaire 10055.011825 Fiberglass Furnace Filter (Pack of 12)
5 Filterbuy 18x25x1 Air Filter MERV 8 (Allergen Odor Eliminator), Pleated HVAC AC Furnace Filters with... Filterbuy 18x25x1 Air Filter MERV 8 (Allergen Odor Eliminator), Pleated HVAC AC Furnace Filters...
6 Filtrete 16x25x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 6-Pack (exact dimensions... Filtrete 16x25x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 6-Pack (exact...
7 Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (2-Pack, Silver) Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (2-Pack, Silver)
8 Filterbuy 20x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters... Filterbuy 20x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters...
9 Filterbuy 18x25x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (4-Pack, Platinum) Filterbuy 18x25x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (4-Pack, Platinum)
10 Filtrete 16x25x1, AC Furnace Air Filter MPR 1000 MERV 11, Allergen Defense, 4-Pack (exact dimensions... Filtrete 16x25x1, AC Furnace Air Filter MPR 1000 MERV 11, Allergen Defense, 4-Pack (exact...
11 Filtrete 20x25x1 Furnace Air Filter MPR 1500 MERV 12, Healthy Living Ultra Allergen, 2-Pack (exact... Filtrete 20x25x1 Furnace Air Filter MPR 1500 MERV 12, Healthy Living Ultra Allergen, 2-Pack...
12 Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4'x 19... Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4"x...
13 Filtrete 18x24x1 Furnace Air Filter MPR 300 MERV 5, Clean Living Basic Dust, 6-Pack (exact... Filtrete 18x24x1 Furnace Air Filter MPR 300 MERV 5, Clean Living Basic Dust, 6-Pack (exact...
14 18x25x1 Merv 8 Pleated AC Furnace Air Filters. Box of 6. Actual Size: 17-1/2 x 24-1/2 x 7/8 18x25x1 Merv 8 Pleated AC Furnace Air Filters. Box of 6. Actual Size: 17-1/2 x 24-1/2 x 7/8
15 Filtrete 20x25x1, AC Furnace Air Filter, MPR 2800, Healthy Living Ultrafine Particle Reduction,... Filtrete 20x25x1, AC Furnace Air Filter, MPR 2800, Healthy Living Ultrafine Particle Reduction,...
16 Filtrete 20x25x1, AC Furnace Air Filter, MPR 2200, Healthy Living Elite Allergen, 6-Pack (exact... Filtrete 20x25x1, AC Furnace Air Filter, MPR 2200, Healthy Living Elite Allergen, 6-Pack (exact...
17 Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (6-Pack, Silver) Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (6-Pack, Silver)
18 18x25x1 Merv 8 Furnace Filter (12 Pack) 18x25x1 Merv 8 Furnace Filter (12 Pack)
19 Filterbuy 18x25x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (2-Pack, Platinum) Filterbuy 18x25x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (2-Pack, Platinum)
20 Filterbuy 18x25x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (2-Pack, Gold) Filterbuy 18x25x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (2-Pack, Gold)
Bestseller No. 1
Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (4-Pack, Silver)
  • 18x25x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17.50 x 24.50 x 0.75 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without...
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products...
  • 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
Bestseller No. 2
Nordic Pure 18x25x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack
  • Nominal Size: 18 x 25 x 1, Actual Size: 17 1/2 x 24 1/2 x 3/4 (17.5 x 24.5 x 0.75)
  • Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.
  • This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently and helps reduce odors
  • Nordic Pure MERV 8 is equivalent to MPR 800
  • Made in the USA
Bestseller No. 3
True Blue Allergen 18x25x1 Air Filter , MERV 11, 4-Pack
  • 18 x 25 x 1 Pleated air filter
  • Filters sub-micron airborne allergens like dust, dirt, pollen, pet dander, dust mite debris, microscopic allergens, smoke and smog
  • Performance allergen reduction filter
  • Lasts up to 120 days
  • Minimum efficiency reporting value or MERV rating is 11
Bestseller No. 4
Flanders/Precisionaire 10055.011825 Fiberglass Furnace Filter (Pack of 12)
  • PRECISIONAIRE" FURNACE AIR FILTER
  • Fiberglass media
  • Boxed
  • 18" x 25" x 1"
Bestseller No. 5
Filterbuy 18x25x1 Air Filter MERV 8 (Allergen Odor Eliminator), Pleated HVAC AC Furnace Filters with...
  • 18x25x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.50 x 24.50 x 0.75 inches)
  • MERV 8 (Odor Eliminator) synthetic media (comparable with MPR 600 & FPR 5) protects homes from adverse smells while trapping 90% of airborne particles...
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products...
  • 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
Bestseller No. 6
Filtrete 16x25x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 6-Pack (exact dimensions...
  • 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...
Bestseller No. 7
Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (2-Pack, Silver)
  • 18x25x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17.50 x 24.50 x 0.75 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without...
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products...
  • 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
Bestseller No. 8
Filterbuy 20x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters...
  • 20x25x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.50" x 24.50" x 0.75")
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without...
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products...
  • 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
Bestseller No. 9
Filterbuy 18x25x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (4-Pack, Platinum)
  • 18x25x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.50 x 24.50 x 0.75 inches)
  • MERV 13 synthetic media (comparable with MPR 1500-1900 & FPR 10) protects homes optimally by trapping 98% of airborne particles without impacting air...
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products...
  • 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
Bestseller No. 10
Filtrete 16x25x1, AC Furnace Air Filter MPR 1000 MERV 11, Allergen Defense, 4-Pack (exact dimensions...
  • 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...
Bestseller No. 11
Filtrete 20x25x1 Furnace Air Filter MPR 1500 MERV 12, Healthy Living Ultra Allergen, 2-Pack (exact...
  • 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,...
  • 1500 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...
Bestseller No. 12
Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4"x 19...
  • Nominal size: 18x20x1; Actual size 17 3/4"x 19 3/4" x 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. For best results, change your filters every 60 to 90 days but...
  • 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...
SaleBestseller No. 13
Filtrete 18x24x1 Furnace Air Filter MPR 300 MERV 5, Clean Living Basic Dust, 6-Pack (exact...
  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. 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 large particles such as lint, household dust and dust mite debris
  • MPR 300 has a rating of MERV 5
  • The higher the MPR, the more microparticles - such as pollen, pet dander and smoke - your filter will capture from the air passing through it
Bestseller No. 14
18x25x1 Merv 8 Pleated AC Furnace Air Filters. Box of 6. Actual Size: 17-1/2 x 24-1/2 x 7/8
  • 18x25x1 AC Furnace Air Filter MERV 8. Box of 6
  • Actual Size: 17-1/2 x 24-1/2 x 7/8. Filter Rating: MERV 8 - 10 | FPR 5 - 6 | MPR 600 - 700.
  • Air Filters for homes, business, schools, apartments, hotels and industrial.
  • Pleat consistency maximizes performance. Achieves MERV 8 pressure drop and air flow with improved MERV 10 filtration.
  • Manufactured by Glasfloss. Made in the USA
SaleBestseller No. 15
Filtrete 20x25x1, AC Furnace Air Filter, MPR 2800, Healthy Living Ultrafine Particle Reduction,...
  • 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,...
  • 2800 MPR has a rating of MERV 14
  • The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing...
Bestseller No. 16
Filtrete 20x25x1, AC Furnace Air Filter, MPR 2200, Healthy Living Elite Allergen, 6-Pack (exact...
  • 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,...
  • 2200 MPR has a rating of MERV 13
  • The higher the MPR, the more microparticles - such as pollen, pet dander, smoke, bacteria and viruses - your filter will capture from the air passing...
Bestseller No. 17
Filterbuy 18x25x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (6-Pack, Silver)
  • 18x25x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17.50 x 24.50 x 0.75 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without...
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products...
  • 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
Bestseller No. 18
18x25x1 Merv 8 Furnace Filter (12 Pack)
  • Nominal Filter Size 18 x 25 x 1
  • Actual Filter Size 17.5" x 24.5" x .875"
  • Merv 8 Performance
  • Made in the USA
  • 100% Performance and Price Guarantee
Bestseller No. 19
Filterbuy 18x25x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (2-Pack, Platinum)
  • 18x25x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17.50 x 24.50 x 0.75 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...
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products...
  • 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
Bestseller No. 20
Filterbuy 18x25x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (2-Pack, Gold)
  • 18x25x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.50 x 24.50 x 0.75 inches)
  • MERV 11 synthetic media (comparable with MPR 1000-1200 & FPR 7) protects homes from pets or allergies by trapping 95% of airborne particles without...
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products...
  • 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

Having trouble finding a great 18x25x1 furnace filters?

This problem is well understood by us because we have gone through the entire 18x25x1 furnace filters research process ourselves, which is why we have put together a comprehensive list of the best 18x25x1 furnace filterss available in the market today.

After hours of searching and using all the models on the market, we have found the best 18x25x1 furnace filters for 2023. See our ranking below!

How Do You Buy The Best 18x25x1 Furnace Filters?

Do you get stressed out thinking about shopping for a great 18x25x1 furnace filters? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 18x25x1 furnace filters, which is why we have assembled a comprehensive list of the greatest 18x25x1 furnace filters available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 18x25x1 furnace filters that you consider buying. Your questions might include the following:

  • Is it worth buying an 18x25x1 furnace filters?
  • What benefits are there with buying an 18x25x1 furnace filters?
  • What factors deserve consideration when shopping for an effective 18x25x1 furnace filters?
  • Why is it crucial to invest in any 18x25x1 furnace filters, much less the best one?
  • Which 18x25x1 furnace filters are good in the current market?
  • Where can you find information like this about 18x25x1 furnace filters?

We’re convinced that you likely have far more questions than just these regarding 18x25x1 furnace filters, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 18x25x1 furnace filters, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 18x25x1 furnace filters. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 18x25x1 furnace filters buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 18x25x1 furnace filters currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 18x25x1 furnace filters has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 18x25x1 furnace filters?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 18x25x1 furnace filters.
  5. Customer Ratings: Number ratings grade 18x25x1 furnace filters objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 18x25x1 furnace filters.
  7. Product Quality: You don’t always get what you pay for with an 18x25x1 furnace filters, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 18x25x1 furnace filters is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 18x25x1 furnace filters information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 18x25x1 furnace filters is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

Related Post:

FAQ:

Q: What furnace filter is best?

A: Filtrete Clean Living Basic Dust AC Furnace Air Filter. Starting off our list is this six-pack of filters from 3M. … Honeywell Home 4-Inch High Efficiency Air Cleaner Filter. Honeywell is another brand that makes some of the best high efficiency air cleaner filters. … FilterBuy Air Filter MERV 8,14x24x1 Pleated HVAC AC Furnace Filters. …

Q: What furnace air filter should I buy?

A: The higher the MERV rating, the more efficient the filter. The American Society of Heating, Refrigeration and Air Conditioner Engineers (ASHARE) recommends a MERV 6 or higher. Most people go with a MERV 8 filter. Most residential areas can remove contaminants with MERV 8 to MERV 13, while most hospitals use MERV 14 to MERV 20.

Q: Should my furnace have an air filter?

A: Your specific situation is unique, but most air filtration experts agree that there is a general lifespan for furnace filters. The standard recommendation is to replace furnace filters at least once every 90 days . Keep in mind, this is a general recommendation.

Q: Where to buy furnace filters?

A: – Premium Air Filters: FPR 10 – Good Air Filters: FPR 4-5 – Common Airborne Contaminants. In addition to the filter’s strength, the FPR also indicates which type of airborne contaminants each filter is ideally suited to capture.