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Aftermarket Furnace Filters

10 Best Aftermarket Furnace Filters 2025 in the United States

Name: Colorfil Color Changing Air Filters - MERV 8, 2 Pack of 16x25x1 Filters for Pets - Reduce Cat and Dog Odors
Brand: Colorfil
Price: 37.99 USD
Availability: InStock

From leading brands and best sellers available on the web.

EconoHome 20x25x4 AC Furnace Pleated Air Filter MERV 11 Replacement – Allergen Defense, 2 Pack, Fits Lennox (X6673), Honeywell (FC100A1037) filters. (Actual size: 19.94 x 24.86 x 4.36 Inches)

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Winner

Colorfil

Colorfil Color Changing Air Filters - MERV 8, 2 Pack of 16x25x1 Filters for Pets - Reduce Cat and Dog Odors

9.9

score

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EconoHome 20x25x4 AC Furnace Pleated Air Filter MERV 11 Replacement – Allergen Defense, 2 Pack, Fits Lennox (X6673), Honeywell (FC100A1037) filters. (Actual size: 19.94 x 24.86 x 4.36 Inches)

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Filterbuy

Filterbuy 16x25x5 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1029, Lennox X6670, Carrier, Bryant, & More (Actual Size: 15.75 x 24.75 x 4.38)

9.8

score

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Trophy Air

Trophy Air Washable Electrostatic HVAC Furnace Air Filter, Lasts a Lifetime, 6 Stage Permanent Air Filter, Healthier Home or Office, Made in The USA - Increases Airflow (20x25x1)

9.6

score

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Clean Comfort

Clean Comfort AMP-11-1625-45 (2-Pack) - 16" x 25" x 4.5" Media Air Filter, MERV 11

9.4

score

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Demiwise

Demiwise 25 x 60 Inch DIY Cut to Size Material for AC/HVAC Furnace Filter and air Vents Filter, for Increasing The MERV Index（48PCs Adhesive Hook） White

9.2

score

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CoreCarbon

CoreCarbon Natural Fiber Hog Hair Furnace Door Filter for Mobile, Manufactured and Modular Homes (19-1/2 x 28)

8.9

score

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CoreCarbon

CoreCarbon 20x30x1 Cut To Fit Furnace & Air Conditioner Washable Reusable High Air Flow Polyester Fiber Filter Media (20 x 30)

8.6

score

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K&N

K&N 16x25x1 Air Filter, Merv 11, Washable Air Filter, the Last Furnace Filter You Will Ever Buy, Breathe Safely at Home or in the Office (Actual Dimensions .8 x 24.6 x 15.6 inches),1 Count (Pack of 1)

8.4

score

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BestAir

BestAir A201-SGM-BOX-11R AC Furnace Air Filter, 20" x 25" x 6", MERV 11, with Cardboard Frame, Fits 100%, For Aprilaire/SpaceGard 2200, 2250 (201) & Lennox PMAC-20C 24", 1 Count (Pack of 1)

8.1

score

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#10

AllergyZone

AllergyZone FilterLock Furnace Filter Slot Seal – Magnetic Seal Cover for Any 1” Furnace Filter, Up To 25” Long, Reduce HVAC Air Leaks, Green

7.8

score

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10 Best Aftermarket Furnace Filters 2025 in the United States

EconoHome 20x25x4 AC Furnace Pleated Air Filter MERV 11 Replacement – Allergen Defense, 2 Pack, Fits Lennox (X6673), Honeywell (FC100A1037) filters. (Actual size: 19.94 x 24.86 x 4.36 Inches)

Colorfil Color Changing Air Filters - MERV 8, 2 Pack of 16x25x1 Filters for Pets - Reduce Cat and Dog Odors

EconoHome 20x25x4 AC Furnace Pleated Air Filter MERV 11 Replacement – Allergen Defense, 2 Pack, Fits Lennox (X6673), Honeywell (FC100A1037) filters. (Actual size: 19.94 x 24.86 x 4.36 Inches)

Filterbuy 16x25x5 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1029, Lennox X6670, Carrier, Bryant, & More (Actual Size: 15.75 x 24.75 x 4.38)

Trophy Air Washable Electrostatic HVAC Furnace Air Filter, Lasts a Lifetime, 6 Stage Permanent Air Filter, Healthier Home or Office, Made in The USA - Increases Airflow (20x25x1)

Clean Comfort AMP-11-1625-45 (2-Pack) - 16" x 25" x 4.5" Media Air Filter, MERV 11

Demiwise 25 x 60 Inch DIY Cut to Size Material for AC/HVAC Furnace Filter and air Vents Filter, for Increasing The MERV Index（48PCs Adhesive Hook） White

EconoHome 16x25x4 AC Furnace Pleated Air Filter MERV 11 Replacement – Allergen Defense, 2 Pack, Fits Lennox (X6670), Honeywell (FC100A1029) filters. (Actual size: 15.94 x 24.86 x 4.36 Inches)

Biodefensor Air Vent Filter Kit - Made in USA Large 90"x20" MERV 6 Electrostatic Roll, Cut to Fit All Floor Registers, Grilles, Ceiling, Wall HVAC Furnce Vents - Includes Adhesive Hook Tape, Prep Pad

Wingman1 Electronic AC Furnace Air Filter Replacement Pads Year Supply - 4 Changes (16x25x1)

Air Vent Filters Roll,12x90 inch Cut to Fit Air Vent(up to 60 filters), MERV 8 Triple Filtration Electrostatic Air Filter Material for AC, HVAC Furnace, Grilles and Mobile Home Adhesive 48PCs Velcros

Precisionaire 20X25x1 Fbg Furn Filter (Pack Of 12) 1005 Furnace Filters Mounted

CoreCarbon Natural Fiber Hog Hair Furnace Door Filter for Mobile, Manufactured and Modular Homes (19-1/2 x 28)

CoreCarbon 20x30x1 Cut To Fit Furnace & Air Conditioner Washable Reusable High Air Flow Polyester Fiber Filter Media (20 x 30)

K&N 16x25x1 Air Filter, Merv 11, Washable Air Filter, the Last Furnace Filter You Will Ever Buy, Breathe Safely at Home or in the Office (Actual Dimensions .8 x 24.6 x 15.6 inches),1 Count (Pack of 1)

BestAir A201-SGM-BOX-11R AC Furnace Air Filter, 20" x 25" x 6", MERV 11, with Cardboard Frame, Fits 100%, For Aprilaire/SpaceGard 2200, 2250 (201) & Lennox PMAC-20C 24", 1 Count (Pack of 1)

AllergyZone FilterLock Furnace Filter Slot Seal – Magnetic Seal Cover for Any 1” Furnace Filter, Up To 25” Long, Reduce HVAC Air Leaks, Green

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