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FiltersFast furnace air filters offer an affordable option to excellent indoor air quality. These replacement home furnace filters will cost you much less than what you will save on your energy efficiency.

FiltersFast Furnace Filters full product list:


FiltersFast IH2PH0-2424115 HEPA Filter Replacement for Aerostar 51347 - 24x24x11.5
(51347)

The Commercial HEPA Filter Replacement 24"x24"x11.5" High Capacity is the correct replacement for the Filtration Group Aerostar 51347.

Free shipping within the continental United States!

In Stock! Ships in 2 to 3 business days.
FiltersFast IH2PH0-2424115 HEPA Filter Replacement for Aerostar 51347 - 24x24x11.5
Our Price: $307.00
Retail: $359.99
You Save 15%!

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FiltersFast Custom Size Air Filters 6 Pack
(FFCAF)

FiltersFast Air Filters are an economical alternative if you're looking for a quality air filter without paying a premium price! FiltersFast Air Filters are now available in custom sizes! View details for order guidelines.


This item has been discontinued. Please review the product description for more information.
FiltersFast Custom Size Air Filters 6 Pack
Our Price: $42.00
Retail: $48.99
You Save 14%!

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FiltersFast MERV 11 Return Grille Air Filter 5"
(FFRAGF)

The FiltersFast MERV 11 Return Grille Air Filter 5" are a great option for upgrading or replacing the traditional 1-inch air filter found in your home or office. View details to learn more...


This item has been discontinued. Please review the product description for more information.
FiltersFast MERV 11 Return Grille Air Filter 5"
Our Price: $31.99
Retail: $39.99
You Save 20%!

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FiltersFast MERV 13 Return Grille Air Filter - 5"
(FFRAG13)

Protect your health, your environment and your wallet with a FiltersFast MERV 13 Return Grille Air Filter. MERV 13 is one of the highest efficiency ratings available, and FiltersFast now offers this rating in a 5" Return Air Grille application.


This item has been discontinued. Please review the product description for more information.
FiltersFast MERV 13 Return Grille Air Filter - 5"
Our Price: $41.99
Retail: $49.99
You Save 16%!

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FiltersFast MERV 8 Odor Killer Odor Filter 6-Pack
(FFOKGM 6-pack)

The FiltersFast Odor Killer Odor Filter is the perfect replacement air filter to eliminate smoke odors, cigarette odors, pet odors, gases and other contaminants from your indoor air.


This item has been discontinued. Please review the product description for more information.
FiltersFast MERV 8 Odor Killer Odor Filter 6-Pack
Our Price: $40.99
Retail: $69.99
You Save 41%!

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FiltersFast MERV 7 Pleated Filters 6 pk
(FFM7Pleat)

With an initial pressure drop of around .17, these FiltersFast 2" MERV 7 Pleated Panel Filters are comparable to or an upgrade over such other pleat filters as the American Air or AmAir PerfectPleat, the Airguard Xtreme Pleated Panel Filters ...


This item has been discontinued. Please review the product description for more information.
FiltersFast MERV 7 Pleated Filters 6 pk
Our Price: $29.95
Retail: $38.99
You Save 23%!

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Odor Killer Return Grille Air Filter - MERV 8, 5"
(FFRAGGM)

The Odor Killer Return Grille Air Filter eliminates smoke odors, cigarette odors, pet odors, gases and other contaminants from your indoor air. Since this return grille air filter is 5" deep compared to the standard 1" air filter, its greater surfac


This item has been discontinued. Please review the product description for more information.
Odor Killer Return Grille Air Filter - MERV 8, 5"
Our Price: $30.99
Retail: $45.99
You Save 33%!

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GeneralAire AC-1 Filter 20x24x5 MERV 8 (2 PACK)
(FFC20245GAM8)

GeneralAire AC-1 Air Filter 20x24x5 is an economical alternative for the OEM GeneralAire AC-1 Air Filter 20x24x5. This furnace filter is part of the GeneralAire AC-1 Series of Residential Air Cleaner Replacement Filters.


This item has been discontinued. Please review the product description for more information.
GeneralAire AC-1 Filter 20x24x5 MERV 8 (2 PACK)
Our Price: $58.99
Retail: $79.99
You Save 26%!

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Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk
(FFC23205TRNM8)

For an economical compatible version of the genuine OEM Trane BAYFTAH23M 21x23.5x5 Perfect Fit Filter, try this MERV 8 Trane 21x23.5x5 Perfect Fit BAYFTAH23M replacement filter.


This item has been discontinued. Please review the product description for more information.
Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk
Our Price: $52.00
Retail: $69.99
You Save 26%!

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FiltersFast MERV 8 Odor Killer 2" 6-Pack
(FFOKGM 2 INCH)

The FiltersFast MERV8 Odor Killer 2" 6-Pack is an effective replacement charcoal air filter to eliminate pet odors, gases, smoke odors, cigarette odors and other contaminants from your indoor air.


This item has been discontinued. Please review the product description for more information.
FiltersFast MERV 8 Odor Killer 2" 6-Pack
Our Price: $51.99
Retail: $99.99
You Save 48%!

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FiltersFast 4" MERV 8 Odor Killer Filter 6-Pack
(FFOKGM4 6PACK)

The FiltersFast 4" MERV 8 Odor Killer Filter 6-Pack is a set of replacement air filters that can eliminate common odors from your home or office, including pet odors, gaseous odors, and smoke and cigarette odors. These odor killer filters utilize G


This item has been discontinued. Please review the product description for more information.
FiltersFast 4" MERV 8 Odor Killer Filter 6-Pack
Our Price: $64.99
Retail: $75.99
You Save 14%!

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FiltersFast 5" Trion Compatible Air Filter 2-Pack
(FFC20255TAB OKGM)

The FiltersFast 5" Trion Compatible FFC20255TAB OKGM is a compatible air filter for Trion Air Bear Air Cleaners that can replace part numbers 255649-102, 229990-002, and 229990-102. This Trion compatible filter features a MERV 8 efficiency rating


This item has been discontinued. Please review the product description for more information.
FiltersFast 5" Trion Compatible Air Filter 2-Pack
Our Price: $46.99
Retail: $54.99
You Save 15%!

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FiltersFast 5" WR Compatible FFC20265WR OKGM
(FFC20265WR OKGM)

The FiltersFast 5" WR Compatible FFC20265WR OKGM is a compatible replacement air filter that is an upgrade over the White Rodgers F825-0549 air filter. The FiltersFast FFC20265WR OKGM 20" x 26" x 5" air filter can be used in several White Rodgers A


This item has been discontinued. Please review the product description for more information.
FiltersFast 5" WR Compatible FFC20265WR OKGM
Our Price: $74.99
Retail: $87.99
You Save 15%!

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FiltersFast MERV 8 Trion Compatible Filter 2-Pack
(FFC16255TAB OKGM)

The FiltersFast MERV 8Trion Compatible Filter 3PACK is the correct replacement for the following: all Trion Air Bear cleaners requiring a 16" x 25" x 5" media filter cartridge This FiltersFast air filter has a MERV 8 rating. This means th


This item has been discontinued. Please review the product description for more information.
FiltersFast MERV 8 Trion Compatible Filter 2-Pack
Our Price: $57.00
Retail: $82.99
You Save 31%!

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FiltersFast MERV 8 16x27x6 Air Filter 2-Pack
(FFC162766SG OKGM)

The FiltersFast MERV 8 16x27x6 Air Filter 2-Pack is a pack of replacement air filters that is an upgrade over the Aprilaire Space Gard 2400 AC Filter. This 16" x 27" 6" has a MERV 8 rating for the reduction of airborne pollutants like pollen, dir


This item has been discontinued. Please review the product description for more information.
FiltersFast MERV 8 16x27x6 Air Filter 2-Pack
Our Price: $47.00
Retail: $59.99
You Save 22%!

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FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
(FFC21235TRN OKGM)

The FiltersFast 5" Trane Perfect Fit 21x23x5 Compatible FFC21235TRN OKGM is the correct replacement for the following: any air cleaner that requires a 21" x 23" x 5" filter This FiltersFast air filter also replaces Trane Perfect Fit BAYFTAH23

Free shipping within the continental United States!

This item has been discontinued. Please review the product description for more information.
FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
Our Price: $100.00
Retail: $116.99
You Save 15%!

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FiltersFast 5" Trane BAYFTFR21M Compatible 2-Pack
(FFC21275TRN OKGM)

The FiltersFast 5" Trane Perfect Fit BAYFTFR21M Compatible FFC21275TRN OKGM fits the following: any air cleaner that calls for a 21" x 27" x 5" filter This FiltersFast air filter also replaces the Trane Perfect Fit BAYFTFR21M filter. This Tr

Free shipping within the continental United States!

This item has been discontinued. Please review the product description for more information.
FiltersFast 5" Trane BAYFTFR21M Compatible 2-Pack
Our Price: $101.00
Retail: $117.99
You Save 14%!

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FiltersFast 5" Trane BAYFTAH21M Compatible 2-Pack
(FFC215215TRN OKGM)

The FiltersFast 5" Trane PF BAYFTAH21M Compatible FFC215215TRN OKGM fits the following: Any air cleaner that requires a 21" x 21.5" x 5" filter This FiltersFast air filter also replaces the Trane Perfect Fit BAYFTAH21M filter. This air filte


This item has been discontinued. Please review the product description for more information.
FiltersFast 5" Trane BAYFTAH21M Compatible 2-Pack
Our Price: $51.90
Retail: $99.99
You Save 48%!

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FiltersFast 5" Trane BAYFTAH23M Compatible 2-Pack
(FFC23205TRN OKGM)

The FiltersFast 5" Trane PF BAYFTAH23M Compatible FFC23205TRN OKGM fits the following: any air cleaner that calls for a 20" x 23" x 5" filter This FiltersFast air filter also replaces the Trane Perfect Fit BAYFTAH23M filter. This Trane compa


This item has been discontinued. Please review the product description for more information.
FiltersFast 5" Trane BAYFTAH23M Compatible 2-Pack
Our Price: $68.66
Retail: $104.99
You Save 35%!

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FiltersFast 5" Trane BAYFTAH26M Compatible 2-Pack
(FFC26215TRN OKGM)

The FiltersFast 5" Trane PF BAYFTAH26M Compatible FFC26215TRN OKGM fits the following: Any air cleaner that requires a 26" x 21" x 5" filter This FiltersFast air filter is also compatible with the Trane Perfect Fit BAYFTAH26M air filter. Thi

Free shipping within the continental United States!

This item has been discontinued. Please review the product description for more information.
FiltersFast 5" Trane BAYFTAH26M Compatible 2-Pack
Our Price: $95.00
Retail: $110.99
You Save 14%!

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FiltersFast 20x20x5 Trion Compatible 2-Pack
(FFC20205TAB OKGM)

The FiltersFast 20x20x5 Trion Compatible Filter can be used Trion AirBear and other air cleaners requiring 20"x20"x5" filter cartridges. They remove airborne particles such as pollen, dust, dander, dust, and other allergens from your indoor air.


This item has been discontinued. Please review the product description for more information.
FiltersFast 20x20x5 Trion Compatible 2-Pack
Our Price: $50.80
Retail: $94.99
You Save 47%!

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FiltersFast MERV 8 20x24x5 Air Filter 2-Pack
(FFC20245GA OKGM)

The FiltersFast MERV 8 20x24x5 Air Filter can be used on Generalaire AC-1, Carrier 31MF020100, Byrant 902BXX020, and air cleaners requiring a 20"x24"x5" filter. These effective air filters remove airborne particles to provide healthier indoor air.


This item has been discontinued. Please review the product description for more information.
FiltersFast MERV 8 20x24x5 Air Filter 2-Pack
Our Price: $50.25
Retail: $69.99
You Save 28%!

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FiltersFast FC100A1037 Compatible MERV 8 2-Pack
(FFC20255HON OKGM)

The FiltersFast FC100A1037 Compatible MERV 8 2-Pack is a compatible replacement air filter for the Honeywell FC100A1037 Air Filter. This two pack of FiltersFast air filters features a MERV 8 rating for the reduction of pollen, dust, pet dander,


This item has been discontinued. Please review the product description for more information.
FiltersFast FC100A1037 Compatible MERV 8 2-Pack
Our Price: $51.90
Retail: $94.99
You Save 45%!

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FiltersFast 15x20x5 MERV 13 Return Grille Filter
(FFRAG13-15205)

The FiltersFast 15x20x5 MERV 13 Return Grille Filter can be used in almost every air cleaner system requiring a 15"x20"x5" media filter cartridge and remove at least 90% of all particles 1.0-10.0 microns.


This item has been discontinued. Please review the product description for more information.
FiltersFast 15x20x5 MERV 13 Return Grille Filter
Our Price: $43.99
Retail: $50.99
You Save 14%!

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FiltersFast 14x24x5 MERV 8 Return Grille Filter
(FFRAGM8-14245)

The FiltersFast 14x24x5 MERV 8 Return Grille Filters, for most air cleaners using 14"x24"x5" filter media, can dramatically reduce airborne particles and allergens to produce healthier indoor air.


This item has been discontinued. Please review the product description for more information.
FiltersFast 14x24x5 MERV 8 Return Grille Filter
Our Price: $41.99
Retail: $48.99
You Save 14%!

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Filters Fast - FiltersFast Furnace Filters

" I just received my filters - thank you for the excellent work that you guys do! I'm a very happy customer. " - Mike, San Marcos, TX
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