10 bestFurnace Filtersof May 2025
112M consumers helped this year.
1
Lennox Healthy Climate 16x25x5 X6670 MERV 11 Filter-Actual Size 15 3/4" x 24 3/4" x 4 3/8". Pack of 3.
Healthy Climate
9.8
28% off
2
Filtrete 16x25x1 Furnace Filter, MPR 1500, MERV 12, Healthy Living Ultra-Allergen 3-Month Pleated 1-Inch Air Filters, 2 Filters
Filtrete
9.6
3
United Filter Compatible with Honeywell 16x25x5 (15-7/8" x 24-7/8" x 4-3/8") X6670 Furnace Air Filter MERV 11 Pleated (3-Pack) - HVAC Filters Captures Airborne Dust, Pollen, Mould & Smoke
United Filter
9.4
4
Lennox Healthy Climate 20 x 25 x 5 Part # X6673 MERV 11 Model HCF 20-11 Case of 3
Healthy Climate
9.1
5
Lennox x6670 HCF 16-11 MERV 11 16x25x5 Aftermarket/Generic. Actual Size 15 3/4" x 24 3/4" x 4 3/8". Case of 3 Made in Canada by Furnace Filters.Ca
FurnaceFilters.Ca
8.8
OtherUp to 28% off
MORENTO 2 Pack HY4866 Genuine Air Purifier Replacement Filter for HY4866 Air Purifier, Enhanced Version
MORENTO 2 Pack HY4866 Genuine Air Purifier Replacement Filter for HY4866 Air Purifier, Original Version
CHIVALZ Humidifier Replacement Filters 10 Pack + Aroma Pads 10 Pack, Compatible with YZY6001 Humidifier, Improve Humidification Efficiency, Aroma for Home Bedroom
HATHASPACE Certified Replacement Filter for HSP003 Dual Filtration HEPA Air Purifier, 1 Set (H13 True HEPA)
6
Filtrete 20x25x4 Furnace Filter, MPR 1000, MERV 11, Clean Living Basic Dust 3-Month Pleated 4-Inch Air Filters, 4 Filters
Filtrete CA
8.5
6% off
7
Filtrete 16x25x4 Furnace Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 4 Filters
Filtrete
8.3
8
Honeywell Home FC100A1037 20x25x4 | MERV 11 ) Actual size : 19-7/8" x 24-3/4" x 4-3/8" MULTI PACK (3)
Honeywell Home
8.0
9
Filtrete 14x25x1 Furnace Filter, MPR 1500, MERV 12, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters
Filtrete
7.7
10
Filtrete 16x20x1 Furnace Filter, MPR 1000, MERV 11, Healthy Living Ultimate Allergen 3-Month Pleated 1-Inch Air Filters, 6 Filters
Filtrete
7.4
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