This Air Filters has been updated 2 times since it was first published in November of 2018. If you’re worried about your family’s respiratory health, then investing in a good air filter for your HVAC system is an absolute must. The selections on this list are designed to fit units requiring 20 x 25 x 5 screens, which are incredibly thick to give you added layers of protection. They can pick dust, germs, pollen, and other debris from the air before they reach your lungs.
10. Tier1 Skuttle
Nordic Pure 20x25x5 (4-3/8 Actual Depth) MERV 8 Lennox X6673 Replacement AC Furnace Air Filter, 2 PACK, 2 piece
- Nominal Size: 20 x 25 x 5 L x RED, Actual Size: 19 3/4 x 24 3/4 x 4 3/8 (19.75 x 24.75 x 4.38)
- Attracts indoor allergens, dust, pollen and other airborne contaminants.
- Hypoallergenic and antimicrobial pleated electrostatic filter material
- Nordic Pure recommends changing 5" air filters every 3-6 months
- Made in the USA
9. Aerostar Filters
Nordic Pure 20x25x5 (4-3/8 Actual Depth) Plus Lennox X6673, X6675 Replacement AC Furnace Air Filter, 1 PACK, MERV 13 + Carbon
- Nominal Size: 20 x 25 x 5 L x RED, Actual Size: 19 3/4 x 24 3/4 x 4 3/8 (19.75 x 24.75 x 4.38)
- Absorb smells from pets, smoking, cooking and other household odors
- Ideal for customers looking for superior filtration and odor control
- Nordic Pure recommends changing 5" air filters every 3-6 months
- Made in the USA
8. BestAir Air Bear
BestAir AB2025-11R Air Cleaning Furnace Filter, MERV 11, For Trion Air Bear, Supreme, Skuttle, GeneralAire, Source1, Ultravation & Braeburn Models, 20" x 25" x 5", Single Pack
- 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 to your HVAC system
- Minimum Efficiency Reporting Value (MERV) of 11; generating better filtration and fewer particles and contaminants that pass through the filter
- Using our best tech and design, the BestAir Furnace Filter is manufactured to trap up to 95% of Airborne Particles from 0.3 to 10.0 microns; This model is 25-30% more efficient when capturing large household particles passing through the filter than a standard 1" fiberglass filter
7. Filtrete Healthy Living
Filtrete 20x25x5, AC Furnace Air Filter, MPR 1550 DP, Healthy Living Ultra Allergen Deep Pleat, 1-Pack
- Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1" 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
- Tip: The higher the MPR (Microparticle Performance Rating), the more particles the filter captures. Select 2500 or 2800 MPR to also capture ultrafine particles
- Filtrete 1550 MPR (Microparticle Performance Rating) equates to MERV 12
6. Nordic Pure Honeywell
Nordic Pure 20x25x4/20x25x5 (19 7/8 x 24 7/8 x 4 3/8) Honeywell FC100A1037 Replacement Pleated AC Furnace Air Filters MERV 12, Box of 2
- Nominal Size: 20-Inch by 25-Inch by 5-Inch
- Actual Size: 19 7/8 x 24 7/8 x 4 3/8
- Nordic Pure brand replacements for Honeywell units
- Replacements for Honeywell 203720, FC35A1027, FC100A1037 and FC200E1037
- MERV 12 filter media to help reduce pollen, pet dander, dust, mold and more
5. Abatement Technologies High Performance
Abatement Technologies H105UVR MERV 13 Filter - 20x25x5
- 1 Filter
- Nominal Size: 20" x 25" x 5"
- Manufactured by Abatement Technologies
- MERV 13
4. Lennox Healthy Climate Solutions X6673
Sale ![Lennox Healthy Climate 20x25x5 x6673 MERV 11 Box Filter]()
Lennox Healthy Climate 20x25x5 x6673 MERV 11 Box Filter
- Replacement for HCXF20-10, HCF20-10
- 20X25X5 MERV 11 Replacement for Lennox X6673
- Replacement for EXPXXFIL0020, EXPXXUNV0020, EXPXXLMC0020, FILCCCAR0020
- X6673 Replacement Filter for Lennox and Honeywell
- Replace ment for FC35A1027, FC100A1037, FC200E1037, F35Expandapac
3. FilterBuy Platinum
FilterBuy 20x25x5 Honeywell FC100A1037 Compatible Pleated AC Furnace Air Filters (MERV 13, AFB Platinum). Replaces Honeywell 203720, FC35A1027, FC100A1037, FC200E1037, Carrier FILXXCAR-0020. 2 Pack.
- FilterBuy 20x25x5 MERV 13 Whole House Air Filter Replacement (Pack of 2 Filters). Actual size 20 x 24 3/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components.
- Designed to replace Honeywell air cleaner F25, Filter #203720. Honeywell F35 & F35R filter # FC35A1027, Honeywell F100 and F150 filter # FC100A1037, and Honeywell F200 filter #FC200E1037.
- Also replaces Bryant FILBBCAR0020, FILXXCAR0020, FILXXCAR0120. Carrier CARF8250602, CARFC100A1037, CARL86469, EXPXXFIL0020, EXPXXLMC0020, EXPXXUNV0020, FILCCCAR0020, FILCCCAR0020, FILCCCAR0020, FILXXCAR0020, FILXXCAR0120. Day and night MACPAK20. Lennox X8790, X0586, X5426, X6661, X6673, X7751, BMAC-20C, HCC20-28, HCF20-10, HCF20-16. Payne MACPAK20.
- HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke.
- Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.
2. Trion Air Bear
Trion Air Bear 259112-102 MERV 11 Filters (3-Pk) - 20x25x5
- MERV 11 filtration
- Nominal size: 20" x 25" x 5"
- Actual size: 24 1/4" x 19 3/4" x 4 7/8"
- This is not a replacement for a Lennox furnace filter
- 3 Pack of a Genuine Trion OEM filter
1. Lennox Healthy Climate Solutions X6675
Lennox X6675 MERV 16 Media Air Cleaner, 1 Filter
- Lennox X6675 Healthy Climate HCF20-16 Carbon Clean Replacement Filter, MERV16 25"x20"x 5"
- Replaces Honeywell FC35A1027, FC100A1037, FC200E1037
- The HCF20-16 Carbon Clean 16 combines industry leading MERV 16 filtration with an odor removing, coconut activated and carbon coated fiber matrix.
- #1 rated professionally installed, whole home HC16 filtration system* is now the Carbon Clean 16
- Provides whole home filtration for optimal home comfort and air quality, with no additional energy costs