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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


General Aire 16x25 MERV10 Filter Media GA100A29
(4352)

The General Aire GA100A29 16x25 MERV10 Filter Media is the correct replacement filter for Honeywell F100 Series and Honeywell F150 Series Media Style Air Cleaners. These filters remove airborne particles to 1.0 micron to provide healthier indoor air.


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General Aire 16x25 MERV10 Filter Media GA100A29
Our Price: $29.99
Retail: $39.99
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General Aire 20x25 MERV10 Filter Media GA100A37
(4356)

The GeneralAire GA100A37 MERV10 Filter Media measures 20"x25x4" approx., and is the correct replacement filter for Source 1 S1 MAC 10202505, Trion Air Bear Supreme 2000, Skuttle DBO-0025-020, Ultravation 90-007 & Honeywell FC100A1037 Air Cleaners.


In stock! Ships in 1 business day.
General Aire 20x25 MERV10 Filter Media GA100A37
Our Price: $29.99
Retail: $39.99
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Trane Perfect Fit Compat. 17.5x27x5 2 pk, MERV 13
(FFC175275TRN M13)

These MERV 13 Furnace Filters replace Trane Perfect Fit Air Filters with the part number BAYFTFR17M or FLR06069, which are 17.5x27x5 air filters used in several Trane Air Cleaner models.

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Trane Perfect Fit Compat. 17.5x27x5 2 pk, MERV 13
Our Price: $115.99
Retail: $116.99
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Aprilaire Spacegard 2200 Air Cleaner Seal Kit
(Aprilaire 4725)

The Aprilaire Spacegard 2200 Air Cleaner Seal Kit (Aprilaire 4725) is for use with the Aprilaire 2200 air cleaner and the Space-Gard 2200 air cleaner. This kit includes the necessary seals which are used to seal the following contacts: (1) between t


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Aprilaire Spacegard 2200 Air Cleaner Seal Kit
Our Price: $22.30
Retail: $34.99
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Frigidaire 241504902 Refrigerator Air Filter
(241504902)

The Frigidaire 241504902 is a refrigerator air filtration cartridge that is the correct compatible replacement for the following: Frigidaire EAF1CB The Frigidaire 241504902 Refrigerator Air Filter fits Frigidaire and Electrolux Pure Advantage


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Frigidaire 241504902 Refrigerator Air Filter
Our Price: $11.99
Retail: $14.99
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Hunter 30928 HEPAtech Purifier Filter
(30928)

The Hunter 30928 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


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Hunter 30928 HEPAtech Purifier Filter
Our Price: $33.95
Retail: $39.95
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Electrolux 241754001 Replacement Air Filter
(241754001)

The Electrolux 241754001 Replacement Air Filter is a replacement filter for Electrolux and Frigidaire PureAdvantage refrigerator models. The Frigidaire air filter, also known as the Frigidaire EAFCBF, reduces common odors from your refrigerator and

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Electrolux 241754001 Replacement Air Filter
As Low As: $10.95
Retail: $19.99
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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.


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Free Flow Room Air Conditioner Filter - 15" x 24"
Our Price: $3.00
Retail: $5.99
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Hunter 30930 HEPAtech Purifier Filter
(30930)

The Hunter 30930 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


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Hunter 30930 HEPAtech Purifier Filter
Our Price: $25.95
Retail: $29.95
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GeneralAire 12758 MERV 11 Filter Media Replacement
(4001)

The GeneralAire 12758 MERV 11 Filter Media Replacement is a replacement air filter for the GeneralAire AC1 and AC22 model air cleaners. This replacement filter media features a MERV 11 rating and Micro Fiber construction for the reduction of airborn


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GeneralAire 12758 MERV 11 Filter Media Replacement
Our Price: $48.99
Retail: $63.99
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Trion Air Bear Cub Filter 16x25x3 MERV 11
(259112-101)

The 259112-101 is the correct filter replacement for all air cleaning sytems requiring a 16" x 25" x 3" air filter. The Trion Air Bear Cub Filter is a genuine Air Bear filter.


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Trion Air Bear Cub Filter 16x25x3 MERV 11
Our Price: $24.99
Retail: $25.95
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Honeywell FC200E1011 Media Filter 20x20x5- Merv 13
(FC200E1011)

The Honeywell FC200E1011 Media Filter 20x20x5- Merv 13 is a replacement air filter for the Honeywell 20X20 F100 and F200 media air cleaners. This Honeywell air filter boasts a MERV 13 rating and removes over 97% of 3 to 10 micron particles from indo


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Honeywell FC200E1011 Media Filter 20x20x5- Merv 13
Our Price: $44.99

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GE WB02X10700 Compatible Oven Range Hood Filter
(OEMRHP0808)

This is an Oven Hood Range Filter (OEMRHP0808) made by American Metal Filter Company which is a compatible replacement range vent hood filter for the GE WB02X10700 range filter. This oven range hood filter is a combination filter composed of carbon


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GE WB02X10700 Compatible Oven Range Hood Filter
Our Price: $8.99
Retail: $9.99
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Holmes HAPF600 HEPA Filter for Harmony Series
(HAPF600)

The Holmes HAPF600 HEPA Filter fits new Harmony Series Modular Air Purifiers HAP615, HAP625, HAP650, HAP675, HAP725, HAP750, HAP1625, HAP1650, HAP1750, HAP1725 and replaces GE Brand 10633, 106643, and 106653.


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Holmes HAPF600 HEPA Filter for Harmony Series
Our Price: $24.00
Retail: $24.99
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Honeywell FC40R1094 12x12x3 Return Grille Filter
(FC40R1094)

The Honeywell FC40R1094 is a high-efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 12x12x4. Genuine Honeywell Part.


In stock! Ships in 1 business day.
Honeywell FC40R1094 12x12x3 Return Grille Filter
As Low As: $37.50
Retail: $50.00
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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
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Aprilaire SpaceGard 2400 Air Filter - MERV 8 2pk
(FFC162766SGM8)

The Aprilaire SpaceGard 2400 Air Filter is an economical compatible alternative for the Aprilaire SpaceGard 2400 Air Cleaner Systems requiring a 16x27x6 media filter.


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Aprilaire SpaceGard 2400 Air Filter - MERV 8 2pk
Our Price: $42.99
Retail: $50.00
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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
Retail: $55.25
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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.


In Stock! Ships in 1 to 2 business days.
Trion 16x25x3 Air Bear Cub Filter - MERV 13 3pk
Our Price: $83.00
Retail: $100.00
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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.

Free shipping within the continental United States!

Out of stock
Lennox X5425 MERV 16 Pleated Furnace Filter Media
Our Price: $99.95
Retail: $122.10
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Trane Perfect Fit BAYFTFR21P4A Filter - 21x27x1
(BAYFTFR21P4A)

The Trane Perfect Fit BAYFTFR21P4A Filter - 21x27x1 fits several air cleaner models made by Trane. This Trane furnace filter measures approximately 21" x 27" x 1" and has pleats for the purification of your indoor air. This Trane Perfect Fit filter


Special Order. Ships in 23 days.
Trane Perfect Fit BAYFTFR21P4A Filter - 21x27x1
Our Price: $19.90
Retail: $19.99
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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.


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%!

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Trion 16x25x5 Air Bear Furnace Filter MERV 13 2pk
(FFC16255TABM13)

The Trion 16x25x5 Air Bear Furnace Filter is the compatible version of the genuine Trion Air Bear Media AC Filter 16x25x5, 255649-105.


In Stock! Ships in 1 to 2 business days.
Trion 16x25x5 Air Bear Furnace Filter MERV 13 2pk
Our Price: $93.00
Retail: $100.00
You Save 7%!

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Hunter 30943 QuietFlo HEPA Purifier Filter
(30943)

The Hunter 30943 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


Discontinued Product Read Description.
Hunter 30943 QuietFlo HEPA Purifier Filter
Our Price: $63.95
Retail: $69.95
You Save 9%!

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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


In Stock! Ships in 1 to 2 business days.
Filters Fast 4-inch MERV 8 Air Filters 6-Pack
Our Price: $62.99
Retail: $69.99
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