Your best online source for furnace filters and heating filters
It is very important to keep your furnace filters clean and replace them as directed. When you need a new furnace filter, this site is the place for you.
Furnace Filters
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HVAC FURNACE AIR FILTER CASE OF 12 SHIPS FREE |  |
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US $29.99 | 24d 13h 58m |
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Replacement Aprilaire Furnace Humidifier Filter SGM | |
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US $23.99 | 3h 34m |
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Replacement Aprilaire Furnace Humidifier Filter SG4 | |
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US $26.99 | 3h 34m |
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Replacement Honeywell Humidifier Furnace Filter A35 x6 | |
1 Bid | US $29.99 | 4h 19m |
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Replacement Aprilaire Humidifier Furnace Filter 6 Pack | |
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US $33.99 | 4h 19m |
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Replacement Aprilaire Humidifier Furnace Filter 12 Pack | |
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US $60.99 | 4h 19m |
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Replacement Honeywell Humidifier Furnace Filter A35x12 | |
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US $60.99 | 4h 19m |
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Replacement Space Gard Furnace Humidifier Filter SG4 | |
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US $26.99 | 4h 20m |
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High Output Aprilaire Humidifier Furnace Filter A12W | |
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US $12.99 | 4h 21m |
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Filter Whistle for Furnace or Air conditioner | |
0 Bid | US $3.99 | 1d 3h 43m |
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NIB FUEL OIL FURNACE FILTER LOT OF 2 WESTWOOD MODEL A070 | |
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US $8.50 | 1d 11h 25m |
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FURNACE FILTER SAVER AND TRACKER | |
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US $3.29 | 1d 11h 59m |
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Sid Harveys 264 1A OIL FILTER ELEMENT FOR FURNACES | |
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US $12.99 | 1d 12h 30m |
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AAF 25x25x1 Furnace Filters StrataDensity 25 24 23 22 21 20 18 16 14 12 10 8 6 | |
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US $27.77 | 1d 17h 7m |
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Filtrete EAR Allergen Reduction Furnace Filter 20x30 2 Pack Model 11224PK | |
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US $50.00 | 13h 1m |
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2 MERV 13 20 x 25 x 5 Air Bear Furnace Air Filters | |
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US $49.98 | 8d 56m |
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6 PK 20X25X4 16X25X4 20X20X4 MERV 11 HOME FURNACE PLEATED AIR FILTERS GLASFLOSS | |
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US $74.99 | 3d 5h 45m |
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3M Filtrete Ultra Allergen High Performance Furnace Air Filter 16x20x1 New | |
0 Bid | US $6.99 | 3d 7h 57m |
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Merv 11 Pleated Filter air furnace 12x25x1 6 Pack Brand New | |
0 Bid | US $.99 | 3d 11h 12m |
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12 175X30X1 HVAC AMERGLAS FURNACE FILTERS NO RESERVE | |
1 Bid | US $12.99 | 3d 13h 23m |
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2 MERV 11 16 x 25 x 5 Honeywell Furnace Air Filters | |
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US $41.75 | 21d 8h 48m |
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4 BestAir A35 Water Pad for Furnace Humidifiers 4 Filter lot | |
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US $20.00 | 4d 2h 39m |
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4 BestAir A10 Water Pad for Furnace Humidifiers 4 Filter lot | |
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US $20.00 | 4d 6h 6m |
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2 MERV 13 16 x 25 x 5 Honeywell Furnace Air Filters | |
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US $40.98 | 6d 13h 32m |
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Furnace Filters Size 16x20x2 MERV 13 Quantity 6 | |
1 Bid | US $49.99 | 4d 12h 43m |
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2 MERV 13 20 x 25 x 5 Honeywell Furnace Air Filters | |
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US $49.49 | 17d 8h 6m |
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2 MERV 11 16 x 25 x 4 Honeywell Furnace Air Filters | |
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US $45.98 | 23d 12h 15m |
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2 MERV 8 16 x 25 x 5 Honeywell Furnace Air Filters | |
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US $39.98 | 23d 23h 57m |
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2 MERV 13 20x20x5 Honeywell Furnace Air Filters | |
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US $53.98 | 29d 1h 34m |
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Trion Brand 20 X 25 X 5 Air Bear Furnace Filters 3 Pack | |
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US $56.00 | 2d 23h 24m |
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12 PACK QUALITY MERV 13 FURNACE AC PLEATED AIR FILTERS | |
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US $85.94 | 3d 5h |
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Electrostatic 24x24x1 Washable Furnace Air Filter 18863 | |
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US $22.99 | 29d 5h 2m |
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Merv 13 Air Conditioning and Furnace Filters 6 Pack | |
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US $59.00 | 16d 3h 9m |
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PRECISIONAIRE FURNACE AIR FILTER 14x20x1 Lot of 12 | |
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US $24.98 | 26d 7h |
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12 Pleated 14x14x1 Furnace Air Filters 180 431 379 | |
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US $25.99 | 16d 2h 53m |
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12pk PrecisionAire Fiberglass A C Air Furnace Filters 24X30X1 new in original bx | |
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US $19.99 | 5d 14m |
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FURNACE AIR FILTERS 15 X 20 X 4 BOX OF 6 MERV 8 BY PUROLATOR FREE SHIPPING | |
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US $59.99 | 5d 36m |
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FURNACE AIR FILTERS 20 X 24 X 2 BOX OF 12 MERV 8 BY PUROLATOR | |
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US $69.99 | 5d 36m |
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2 MERV 13 20 x 25 x 4 Honeywell Furnace Air Filters | |
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US $57.50 | 29d 2h 11m |
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RSE Inc Furnace Air Filter Electrostatic Metal Frame New 20 x 12 | |
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US $14.99 | 5d 2h 20m |
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RSE Inc Furnace Air Filter Electrostatic Metal Frame New 16 x 12 | |
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US $14.99 | 5d 2h 20m |
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RSE Inc Furnace Air Filter Electrostatic Metal Frame New 20 x 10 | |
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US $14.99 | 5d 2h 20m |
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NEW Nordic Pure 20x25x5 Honeywell Replacement AC Furnace Air Filters MERV 12 Box | |
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US $52.52 | 24d 13h 52m |
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MERV 11 20x22x1 Pleated Furnace Filters A C 12 pack | |
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US $68.27 | 19d 2h 56m |
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Filtrete Allergen Reduction Furnace Filter 16x25 2 Pack 2 Pks Ctn 4 Filters | |
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US $52.00 | 5d 3h 47m |
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MERV 11 14x24x1 Pleated Furnace Filters A C 12 pack | |
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US $59.19 | 19d 3h |
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Furnace Air Filter Electrostatic 14 x 21 x 1 New Metal Frame Mesh Washable | |
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US $14.00 | 5d 4h 42m |
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Furnace Air Filter Electrostatic 13 14 x 24 x 1 New Metal Frame Mesh Washable | |
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US $14.00 | 5d 4h 51m |
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2 MERV 13 16 x 25 x 4 Honeywell Furnace Air Filters | |
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US $49.98 | 26d 1h 57m |
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Merv 11 Air Conditioning and Furnace Filters 6 Pack | |
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US $38.95 | 16d 3h 3m |