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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.

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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.

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Air Filters product list


F825-0548 White Rodgers Compatible 16x26x5, 2pk
(FFC16265WR)

The Filters Fast Compatible 16x26x5 MERV 11 Air Filter can be used as an upgrade for White Rodgers part number F825-0548. Upgrade your White Rodgers Media Filter today and get a better filter for the same price as the original manufacturer's brand!


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F825-0548 White Rodgers Compatible 16x26x5, 2pk
Our Price: $54.25

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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.


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Honeywell FC40R1052 16x20 Return Air Grille Filter
As Low As: $48.99
Retail: $53.00
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Trion Air Bear Supreme Filter 20x20x5 MERV11
(259112-103)

The Trion Air Bear Supreme Filter 20x20x5 MERV11 is an Air Bear filter with a MERV 11 rating and built-in frame strength. This genuine Air Bear filter boasts pre-applied gasketing on the pre-assembled filter in order to prevent air bypass. The MERV


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Trion Air Bear Supreme Filter 20x20x5 MERV11
Our Price: $45.99
Retail: $49.99
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Lennox X5425 MERV 16 Pleated Furnace Filter Media
(X5425)

This Lennox X5425 MERV 16 Pleated Furnace Filter Media is an excellent filter for someone who wants a significant upgrade over standard fiberglass filters from the hardware store. This pleated filter is a genuine MERV 16 filter.

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Lennox X5425 MERV 16 Pleated Furnace Filter Media
Our Price: $99.95
Retail: $122.10
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Hoover Air Purifier HEPA & Pre-filter AH60010
(AH60010)

The Hoover AH60010 is the correct replacement for the following models of air purifiers: Hoover WH10100 Hoover WH10200 The Hoover Air Purifier HEPA & Pre-filter AH60010 contains a rinsable pre-filter and a HEPA media filter. The pre-filter of


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Hoover Air Purifier HEPA & Pre-filter AH60010
Our Price: $18.70
Retail: $19.99
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Honeywell FC40R1144 Return Air Filter - 20x24
(FC40R1144)

The Honeywell FC40R1144 Return Air Filter - 20x24 is a replacement air filter that mounts in most return filter grilles. The Honeywell return air grille filter features four inches of depth, which provides a higher efficiency than standard one inch


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Honeywell FC40R1144 Return Air Filter - 20x24
Our Price: $32.95
Retail: $39.99
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Carrier 356066-0601 EACBAXCC0020 PreFilter 2pk
(356066-0601)

The Carrier 356066-0601 Pre Filter is a genuine OEM factory replacement pre filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


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Carrier 356066-0601 EACBAXCC0020 PreFilter 2pk
Our Price: $33.01
Retail: $39.99
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Filters Fast MERV 8 Odor Killer 2" 6-Pack
(FFOKGM 2 INCH)

The Filters Fast 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.


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Filters Fast MERV 8 Odor Killer 2" 6-Pack
Our Price: $85.02
Retail: $99.99
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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


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Honeywell FC40R1177 Return Grille Filter - 24x30
Our Price: $39.95
Retail: $44.99
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Honeywell 50000293-003 Post Air Filter - 10x20 2pk
(50000293-003)

The Honeywell 50000293-003 is a post filter that fits the following electronic air cleaner models: Honeywell F50F Honeywell F58F Honeywell F300 The Honeywell 50000293-003 Post Air Filter - 10x20 improves the performance and efficiency of the


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Honeywell 50000293-003 Post Air Filter - 10x20 2pk
Our Price: $41.99
Retail: $49.99
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Trane 24.5x27x5 BAYFTFR24M2A Comp Trane 2-Pack
(FFC245275TRN)

The Trane BAYFTFR24M2A compatible air filter captures airborne pollutants that can cause a negative impact on respiratory health


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Trane 24.5x27x5 BAYFTFR24M2A Comp Trane 2-Pack
Our Price: $54.99
Retail: $59.95
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Lennox 75X66 Metal Mesh Filter
(75X66)

The Lennox 75X66 Metal Mesh Filter is the correct replacement for the following air cleaner: Lennox Pureair PCO-2OC The Lennox Pureair air cleaner is the only air cleaner made that destroys odors and VOC's, and has a MERV rating of MERV 16.

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Lennox 75X66 Metal Mesh Filter
Our Price: $152.00
Retail: $199.99
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Honeywell 20x20x5 Filter FC100A1011 - MERV 8 2pk
(FFC20205HONM8)

Honeywell 20x20x5 FC100A1011 Air Filter is an economical compatible version of the OEM Honeywell FC100A1011 20"x20" Media AC Filter. To save money, this air filter replacement comes in a 2pk value set.


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Honeywell 20x20x5 Filter FC100A1011 - MERV 8 2pk
Our Price: $43.90
Retail: $50.00
You Save 12%!

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Filters Fast Trion Air Bear 16x25x3 Air Filter 3pk
(FFC16253TAB)

Replace your Trion Air Bear 255649-101 16x25x3 air filter with this Filters Fast compatible AC filter, which features a MERV 11 rating, an upgrade from the MERV 8 Trion Air Bear.


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Filters Fast Trion Air Bear 16x25x3 Air Filter 3pk
Our Price: $65.00

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GeneralAire 13415 MERV 11 Filter Media for AC4
(GA 4401)

The GeneralAire air cleaner filter replacement is manufactured for your AC4 furnace air cleaner. This air cleaner filter cartridge features a MERV 11 rating that will capture particulates down to 3 microns in size. This genuine GeneralAire product i


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GeneralAire 13415 MERV 11 Filter Media for AC4
Our Price: $29.99

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Filters Fast MERV 8 Pleated 1" Panel Filter 6-Pack
(FFM8PLEAT1)

The Filters Fast MERV 8 Pleated 1" Panel Filter 6-Pack is a set of replacement air filters for ideal use as service pleats or prefilters in commercial HVAC systems or industrial air cleaners. These pleated media filters arrive in a 6 pack and are ef


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Filters Fast MERV 8 Pleated 1" Panel Filter 6-Pack
Our Price: $36.99
Retail: $49.99
You Save 26%!

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Filters Fast 4-inch MERV 8 Air Filters 6-Pack
(FFM8PLEAT 4)

The Filters Fast 4-inch MERV 8 4"Air Filters 6-pack is compatible with: Aprilaire Space-Gard Trion Air Bear Honeywell and other top name brand air conditioning filters. Usable in residential, commercial, and industrial applications, the


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Filters Fast 4-inch MERV 8 Air Filters 6-Pack
Our Price: $62.99
Retail: $69.99
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Lennox X6669 MERV 16 Pleated Filter Media
(X6669)

The Lennox X6669 is a pleated box filter for your Pureair air cleaner. This air filter box measures 21x26x4 inches and is a pleated air filter. The Lennox x6669 furnace filter box can also be used to upgrade your older Pureair unit to a MERV 16.

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Lennox X6669 MERV 16 Pleated Filter Media
Our Price: $117.83
Retail: $149.99
You Save 21%!

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Honeywell FC40R1045 14x25 Return Air Grille Filter
(FC40R1045)

Honeywell FC40R1045 14x25 Return Air Grille AC Filter is a high efficiency, replacement for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 14x25x4. Genuine Honeywell Part.


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Honeywell FC40R1045 14x25 Return Air Grille Filter
Our Price: $41.00
Retail: $50.00
You Save 18%!

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Trane Perfect Fit Filter 23.5x21x5 BAYFTAH23M 3-Pk
(HTRN2321T1)

These three Honeywell air filters are compatible furnace filters that can be used as upgrades over the Trane Perfect Fit filter of the same size. Genuine Trane Perfect Fit filters have only a MERV 8 rating, while these compatible Honeywell furnace f

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Trane Perfect Fit Filter 23.5x21x5 BAYFTAH23M 3-Pk
Our Price: $147.00
Retail: $160.00
You Save 8%!

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Hunter 30925 HEPAtech Purifier Filter
(30925)

The Hunter 30925 HEPAtech v Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


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Hunter 30925 HEPAtech Purifier Filter
Our Price: $23.00
Retail: $34.00
You Save 32%!

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Aprilaire #401 Compatible Media Filter 2-Pack
(SG4PR-B)

The Space-Gard MERV 11 Compatible Media Filter 2-Pack is a two pack of compatible replacement air filters for the Aprilaire Model 2400 Air Cleaner. Model #401.


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Aprilaire #401 Compatible Media Filter 2-Pack
Our Price: $89.90

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Aprilaire #401 Compatible Media Filter 2-Pack
(SG4PR-B)

The Space-Gard MERV 11 Compatible Media Filter 2-Pack is a two pack of compatible replacement air filters for the Aprilaire Model 2400 Air Cleaner. Model #401.


In stock! Ships in 1 business day.
Aprilaire #401 Compatible Media Filter 2-Pack
Our Price: $89.90

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Trion 16x25x3 Air Bear Cub Filter - MERV 13 3pk
(FFC16253TABM13)

The 16x25x3 Trion Air Bear Cub Filter is a compatible version of the genuine Trion Air Bear Media AC Filter 16x25x3, 255649-101.


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Trion 16x25x3 Air Bear Cub Filter - MERV 13 3pk
Our Price: $83.00
Retail: $100.00
You Save 17%!

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GE WB02X10733 Microwave Filter Compatible
(OEMRCR0613)

This Microwave Filter Replacement (OEMRCR0613) made by American Metal Filter Company is a compatible replacement microwave filter primarily for the GE WB02X10733 filter. It is a recirculating charcoal carbon microwave filter for use with non-ducted


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GE WB02X10733 Microwave Filter Compatible
Our Price: $14.99
Retail: $19.99
You Save 25%!

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Filters Fast - Air Filters

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