bbb A+ site secured
RETURNING CUSTOMER?
SIGN IN. CONFIRM ORDER. DONE.

Find Replacement Air Filters Fast & Easy!

Air Filter Shield

While many people worry about outdoor air quality, statistics show that they actually should be more concerned about indoor air quality (IAQ). IAQ is the measure of harmful pollutants discovered within or around your home. The EPA ranks IAQ as one of the top five public health risks.

Find Your Filter Size

Pick a size. Pick a quality. Checkout.


Find by Filter Brand

Air Filter FAQ

Can I use the same air filter for both heat and AC?

Yes, both AC filters and furnace filters are the same thing. We categorize filters based on their intended use to make filter shopping easier for the customer. During the summer months you are more likely to search for AC filters. While during colder winter months you are looking to buy furnace filters. A good tip for remembering when to change your filters is to replace them at the start of each new season.

Which direction does the air filter go?

Always point the arrow on the box in the direction of airflow. If you are unsure the direction of airflow turn on the system fan. Do not remove the old filter before checking airflow as this might allow dirt or debris to escape.

What is air filter MERV rating?

The Minimum Efficiency Reporting Value (MERV) is used by manufacturers to explain how efficent the air filter is at trapping airborne particles. A higher MERV rating means cleaner air but reduced air flow. MERV 8 filters capture 80% of airborn particles like pollen, dust mites, mold spores, and pet dander down to 3 microns in size. MERV 11 air filters capture up to 95% of the above mentioned airborne particles down to 1 micron in size. If you choose a MERV 13 filter expect greatly diminished airflow but improved filtration of bacteria, tobacco smoke, and cooking oil down to 0.3 micorn in size. Before you choose a MERV rating check with your HVAC manufacturer to see what your system is designed to handle. Picking the wrong filter can impact air flow and reduce equipment life.

When to change the air filter in your house?

Replace your air filters every 3 months. You may need to replace your filters more frequently depending on air quality. If you are unsure about indoor air quailty check the filter monthly. If you notice the filter material is greatly discolored or noticably dirty change out the filter. Failing to replace air filters as recommened can lead to reduced system efficieny, greater energy costs, and poor air quailty.

Which air filter is best for allergies?

If you have respiratory problems caused by pollen, dust, mold, or pet dander a MERV 11 filter can help reduce the severity of aliments caused by allergies. If you are sensitive to smoke from cooking or tobacco a MERV 13 filter is recommend. For many allergy sufferers it is recommend you install filters to process both supply and return air. Before you choose a MERV rating check with your HVAC manufacturer to see what your system is designed to handle. Picking the wrong filter can impact air flow and reduce equipment life.

Which air filter is best for my home?

Your choice in air filter should depend on needs. MERV 8 filters are perfect if you have no pets and allergies are not a serious concern. MERV 11 filters are recommend for occasional allergy sufferers and homes with pets. A MERV 13 filter should be used if allergies are a serious concern and there are tobacco smokers in the house.

Where are they made?

Filtersfast brand air filters are proudly made in America. While the manufacturing location of products can vary from company-to-company, Country of Origin laws require that most products manufactured outside of America bear labeling that tells consumers where the product is made. This label should be visable on the product itself or the packaging in which it arrived.

Are the home air filters electrostatically charged?

Yes, Filtersfast, Filtrete, Carrier, among many other air filter brands use an electrostatically charged filter media. Fiberglass air filters are far less common today and were never designed to improve air quality, rather they protect HVAC systems from large dirt and debris.

Routine maintenance is a critical part of caring for your home. One area that should not be overlooked is replacing your home’s furnace filters on a regular basis following the manufacturers recommended guidelines. By doing this, you will help prolong the life of your system, as well as help eliminate indoor air contaminates.

Air filters help rid your home of a variety of air pollutants including smog, smoke, pollen, bacteria, pet dander, mold spores, dust, dust mites, debris and virus carrying particles. The MERV rating on furnace filters can help guide you in this area. The higher the rating, the more efficient the air filter will be at eliminating indoor contaminates.

Filtrete, Trion, 3M and Honeywell all manufacture high quality filters in a variety of sizes to meet all of your air filtration needs.


Sort :

Furnace Filters product list


Honeywell FC40R1052 16x20 Return Air Grille Filter
(FC40R1052)

The Honeywell FC40R1052 is a high-efficiency, replacement AC filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 16x20x4. Genuine Honeywell Part.


In stock! Ships in 1 business day.
Honeywell FC40R1052 16x20 Return Air Grille Filter
As Low As: $48.99
Retail: $53.00
You Save 8%!

view




Honeywell FC40R1177 Return Grille Filter - 24x30
(FC40R1177)

The Honeywell FC40R1177 Return Grille Filter - 24x30 is a cartridge-style air filter that mounts in most return filter grilles. The Honeywell return air grille filter is constructed 4 inches thick for a higher efficiency than 1 inch filters. This Ho


In Stock! Ships in 7 to 8 business days.
Honeywell FC40R1177 Return Grille Filter - 24x30
Our Price: $39.95
Retail: $44.99
You Save 11%!

view




GE Air Conditioner Filter for Zoneline A/C (Left)
(WP85X10003)

This GE Air Conditioner Filter (WP85X10003) is a replacement filter for GE Zoneline air conditioning (A/C) units. This air conditioner filter fits in the left side panel slot only - the filter for the right side panel slot is sold separately.


Special Order. Ships in 13 days.
GE Air Conditioner Filter for Zoneline A/C (Left)
Our Price: $17.55
Retail: $22.99
You Save 24%!

view




GeneralAire AC-1 Filter 20x24x5 MERV 13 (2 PACK)
(FFC20245GAM13)

The GeneralAire AC-1 Air Filter 20x24x5 is a cost-effective compatible version of the genuine 20x24x5 General Filter AC-1 Air Filters.


In Stock! Ships in 12 to 13 business days.
GeneralAire AC-1 Filter 20x24x5 MERV 13 (2 PACK)
Our Price: $60.00
Retail: $80.00
You Save 25%!

view




Trane BAYFTAH21P4A Pleated 1 inch Filter 21.5x21x1
(BAYFTAH21P4A)

The Trane BAYFTAH21P4A is an air conditioning and furnace filter for use in the following application: 21 1/2 inch enclosures The Trane BAYFTAH21P4A Pleated 1 inch Filter 21.5x21x1 is a 1 inch pleated filter. This Trane perfect fit filter meas


In Stock! Ships in 1 to 2 business days.
Trane BAYFTAH21P4A Pleated 1 inch Filter 21.5x21x1
Our Price: $11.83
Retail: $14.99
You Save 21%!

view




Trane 21x27x5 Perfect Fit Filter BAYFTFR21M M13 x2
(FFC21275TRNM13)

The Trane 21x27x5 Perfect Fit Filter BAYFTFR21M is an economical compatible version of the genuine Trane 21x27x5 Perfect Fit Air Filter.

Free shipping within the continental United States!

In Stock! Ships in 1 to 2 business days.
Trane 21x27x5 Perfect Fit Filter BAYFTFR21M M13 x2
Our Price: $110.00
Retail: $140.00
You Save 21%!

view




Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 4-Pack
(BAYFTAH26P4A)

The Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 is a furnace air filter that fits several electronic and media air cleaner models from Trane. This Trane air filter boasts a MERV 8 rating for the reduction of particulates in your air, including


In Stock! Ships in 1 to 2 business days.
Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 4-Pack
Our Price: $51.80
Retail: $59.80
You Save 13%!

view




Trion Air Bear Supreme 2000 Media Air Cleaner
(455602-025)

The Trion Air Bear Supreme 2000 Media Air Cleaner, part number 455602-019, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles from your air.


Special Order. Ships in 14 days.
Trion Air Bear Supreme 2000 Media Air Cleaner
Our Price: $71.21
Retail: $120.74
You Save 41%!

view




Trane Perfect Fit BAYFTAH23W1A Prefilter 23.5x21x1
(BAYFTAH23W1A)

The Trane Perfect Fit BAYFTAH23W1A Prefilter 23.5x21x1 is an OEM replacement filter from Trane that features a MERV 5 rating for the reduction of airborne particulates. This Trane Perfect Fit filter fits 23 1/2" enclosures and measures approximately


In stock! Ships in 1 business day.
Trane Perfect Fit BAYFTAH23W1A Prefilter 23.5x21x1
Our Price: $20.33
Retail: $29.99
You Save 32%!

view




Filters Fast 12x12x1 MERV 8 Filter 6-Pack
(FFOKGM 6-PACK-12121)

The Filters Fast FFOKGM 6-PACK-12121 is an Odor Killer Grey Matter filter that works to remove the following from your indoor air: Smoke odors Cigarette odors Pet odors Gases Other contaminants Pollen Dust Pet Dander Mold Mildew Other


In Stock! Ships in 10 to 11 business days.
Filters Fast 12x12x1 MERV 8 Filter 6-Pack
Our Price: $42.99
Retail: $49.99
You Save 14%!

view




Free Flow Room Air Conditioner Filter - 15" x 24"
(93524)

This Free Flow Room Air Conditioner Filter (1777) is a universal 15" x 24" cut to fit black foam room air conditioner filter. It filters dirt, dust, soot, pollen, and other allergens.


Special Order. Ships in 9 days.
Free Flow Room Air Conditioner Filter - 15" x 24"
Our Price: $3.00
Retail: $5.99
You Save 50%!

view




F825-0549 White Rodgers Compatible 20x26x5, 2pk
(FFC20265WR)

The Filters Fast Compatible 20x26x5 MERV 11 Air Filter can be used as an upgrade for White Rodgers part number F825-0549. Upgrade your White Rodgers Media Filter today and get a better filter for the same price as the original manufacturer's brand!


In Stock! Ships in 1 to 2 business days.
F825-0549 White Rodgers Compatible 20x26x5, 2pk
Our Price: $72.99
Retail: $79.99
You Save 9%!

view




Filters Fast 20x20x5 Trion Compatible Filter 2PACK
(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.


In Stock! Ships in 10 to 11 business days.
Filters Fast 20x20x5 Trion Compatible Filter 2PACK
Our Price: $39.99
Retail: $94.99
You Save 58%!

view




Trion Air Bear Supreme 1400 Media Air Cleaner
(455602-119C)

The Trion Air Bear Supreme 1400 Media Air Cleaner, part number 455602-119C, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles and other microscopic particles.


In Stock! Ships in 10 to 11 business days.
Trion Air Bear Supreme 1400 Media Air Cleaner
Our Price: $76.15
Retail: $120.75
You Save 37%!

view




Trane Perfect Fit BAYFTAH21W1A Prefilter 21.5x21x1
(BAYFTAH21W1A)

The Trane Perfect Fit BAYFTAH21W1A Prefilter 21.5x21x1 is an OEM replacement filter from Trane that features a MERV 5 rating for the reduction of airborne particulates. This Trane Perfect Fit filter fits 21 1/2" enclosures and measures approximately


In Stock! Ships in 1 to 2 business days.
Trane Perfect Fit BAYFTAH21W1A Prefilter 21.5x21x1
Our Price: $18.51
Retail: $19.99
You Save 7%!

view




Trane Perfect Fit BAYFTFR14P4A Filter - 14.5x27x1
(BAYFTFR14P4)

The Trane Perfect Fit BAYFTFR14P4A Filter - 14.5x27x1 is a furnace air filter that fits several air cleaner models from Trane. This Trane Perfect Fit filter features pleats that help capture a variety of airborne particles to purify your air. This T


In Stock! Ships in 1 to 2 business days.
Trane Perfect Fit BAYFTFR14P4A Filter - 14.5x27x1
Our Price: $16.11
Retail: $19.99
You Save 19%!

view




Trane 24x26x5 Perfect Fit Filter BAYFTFR24M M13 x2
(FFC24265TRNM13)

For an economical compatible version of the genuine 24x26x5 Trane Perfect Fit BAYFTFR24M Filter, try this Trane 24x26x5 Perfect Fit Filter BAYFTFR24M with a MERV 13 energy efficiency rating.

Free shipping within the continental United States!

In Stock! Ships in 1 to 2 business days.
Trane 24x26x5 Perfect Fit Filter BAYFTFR24M M13 x2
Our Price: $110.00
Retail: $140.00
You Save 21%!

view




Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5
(BAYFTFR24M2A)

The Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5 fits the TFM245B0FR0 Perfect Fit High Efficiency Air Cleaner and easily slides in for quick use. This Trane Perfect Fit filter measures approximately 24.5" x 27" x 5" and has a MERV 8 rating for


In stock! Ships in 1 business day.
Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5
Our Price: $49.73
Retail: $59.99
You Save 17%!

view




White Rodgers 20x26x5 Filter F825-0549 MERV 13 2pk
(FFC20265WRM13)

The White Rodgers 20x26x5 Air Filter F825-0549 is a compatible alternative that's a part of the White Rodgers F825 Series residential air cleaner replacement filters.


In Stock! Ships in 1 to 2 business days.
White Rodgers 20x26x5 Filter F825-0549 MERV 13 2pk
Our Price: $80.00
Retail: $100.00
You Save 20%!

view




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

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


In Stock! Ships in 10 to 11 business days.
FiltersFast 5" Trane BAYFTAH23M Compatible 2-Pack
Our Price: $66.66
Retail: $104.99
You Save 37%!

view




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

The Filters Fast 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 Filters Fast air filter also replaces Trane Perfect Fit BAYFTAH23


In Stock! Ships in 10 to 11 business days.
FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
Our Price: $42.99
Retail: $49.95
You Save 14%!

view




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

The Filters Fast 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


In Stock! Ships in 10 to 11 business days.
Filters Fast MERV 8 16x27x6 Air Filter 2-Pack
Our Price: $46.96
Retail: $49.31
You Save 5%!

view




Trane Perfect Fit BAYFTFR21W1A Pre-filter 21x27x1
(BAYFTFR21W1A)

The Trane BAYFTFR21W1A is a pre-filter for use in the following furnace: Trane BAY21WF The Trane Perfect Fit BAYFTFR21W1A Pre-filter 21x27x1 has a nominal size of 21 inches x 27 inches x 1 inch. The actual size of this Trane pre-filter is 20.7


In stock! Ships in 1 business day.
Trane Perfect Fit BAYFTFR21W1A Pre-filter 21x27x1
Our Price: $49.99
Retail: $69.99
You Save 29%!

view




Filters Fast 16x25x5 MERV 8 Air Filter 2-Pack
(FFC16255HON OKGM)

The Filters Fast 16x25x5 MERV 8 Air Filter 3-Pack is a replacement pack of compatible air filters that is an upgrade the Honeywell FC100A1029 and Carrier FILCCCAR0016 air filters. This 3 pack of 16" x 25" x 5" filters features a MERV 8 rating and


In Stock! Ships in 10 to 11 business days.
Filters Fast 16x25x5 MERV 8 Air Filter 2-Pack
Our Price: $60.66
Retail: $94.99
You Save 36%!

view




Trion Air Bear Right Angle Air Cleaner Merv 11
(447380-510)

The 447380-510 is the correct air cleaner that uses: 5" thick electrostatically charged pleated filter media.

Free shipping within the continental United States!

In Stock! Ships in 10 to 11 business days.
Trion Air Bear Right Angle Air Cleaner Merv 11
Our Price: $129.99
Retail: $149.99
You Save 13%!

view





Page 1 2 3 4 5 6 7 8 9 [ Back | Next ]

Filters Fast - 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
Terms of Use | Privacy Policy ©2005-2017 Filters Fast LLC - All Rights Reserved
Don't Miss Out on Exclusive email Icon
Promotions and Discounts!
By signing up for our
Free Newsletter, you'll receive
exclusive promotions, discounts
and more directly to your inbox
We respect your privacy .
*Cannot be combined with any other promotion