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FiltersFast replacement home air filters should be replaced every one to three months depending on air quality and usage. Replacement 1", 2", 4", and 5" air filters are available and come in select MERV ratings.

Find your Air Filter Size


Depth
Most common house filters are 1" in the depth or thickness. If you measure your filter to find the real thickness you will find that it isn't the same dimension as it states on the filter. This difference in the real dimension to the printed dimension are industry standards and can be confusing. The printed size on a filter is called nominal size and is not the real dimension of the filter. So a 1" thick filter is normally .75" thick. To make it easier to talk about sizes we use the nominal dimensions to refer to filter instead of the actual or real size. Because you are creating a filter by selecting the real dimensions, it is important to know the real dimensions of your filter instead of the nominal or printed dimensions that show on your filter. We will show you the nominal dimension for the Depth or thickness because there are only 1",2", or 4" sizes. Now you would select 1" for your filter if you are replacing a .75" filter, if your filter is 1.75" that would be a 2" filter and a 4" is 3.5"
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Size
Nominal Size: The printed value of a filter dimension. (15"x20"x1")
Actual size: Actual or real sizes of filters are typically .5" less than the printed dimension or nominal value listed on the filter. A filter of 20"x24" would be 19.5"x23.5"
Need help? Call 866-438-3458. Our sales line is open Monday through Friday between the hours of 9am to 12:30pm and 1:30pm to 6pm EST.

FiltersFast Air Filters Product List:


Filters Fast® 16x20x4 MERV 8 AirTight Return Grille Filter - 3-Pack
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Retail: $107.85

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Filters Fast® Replacement for Honeywell FC40R1052 - 3-Pack
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within the continental U.S.

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Ships in 1 to 2 business days.

Retail: $143.85

Our Price: $119.85

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Filters Fast® Replacement for Honeywell FC40R1060 - 3-Pack
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within the continental U.S.

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Ships in 3 to 4 business days.

Retail: $143.85

Our Price: $119.85

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Filters Fast® Replacement for GeneralAire 4365 - 16x20x5, 2-Pack
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Retail: $70.99

Our Price: $55.95

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Filters Fast® IH2PH0-2424115 HEPA Filter Replacement for Aerostar 51347 - 24x24x11.5
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within the continental U.S.

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Retail: $360.99

Our Price: $299.95

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Filters Fast® Replacement for BDP P102-2025, 20x25x5 - 2-Pack
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Retail: $80.99

Our Price: $65.95

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Filters Fast® Replacement for York FS1625 MERV11, 16x25x5 - 2-Pack
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Retail: $70.99

Our Price: $60.95

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Filters Fast® Replacement for Nordyne MU1625 MERV11, 16x25x5 - 2-Pack
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Retail: $70.99

Our Price: $60.95

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Filters Fast® Replacement for Payne M1-1056 MERV11, 16x25x5 - 2-Pack
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Retail: $70.99

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Filters Fast® Replacement for York M8-1056 MERV11, 20x25x5 - 2-Pack
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Retail: $80.99

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Filters Fast® Replacement for Nordyne MU2025, 20x25x5 - 2-Pack
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Retail: $80.99

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Filters Fast® FFC14275TRNM13 Replacement for Trane TFM145BOFRO 14x27x5 Air Filter
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Retail: $99.99

Our Price: $84.95

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Filters Fast® Replacement for Amana 9183950 MERV11, 16x25x5 - 2-Pack
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Retail: $70.99

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Filters Fast® Replacement for Electric-Air MU1625 MERV11, 16x25x5 - 2-Pack
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Retail: $70.99

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Filters Fast® Replacement for Five Seasons FS1625 MERV11, 16x25x5 - 2-Pack
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Retail: $70.99

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Filters Fast® Replacement for Bryant FILBBCAR0016, 16x25x5 - 2pk
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Retail: $70.99

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Goodman P102-2020 MERV8 Comp - 2-Pack
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Retail: $89.99

Our Price: $62.95

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Nordyne 918396 MERV11 Comp - 2-Pack
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Retail: $89.99

Our Price: $67.95

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Amana P102-2020 MERV13 Compatible - 2-Pack
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Retail: $89.99

Our Price: $72.95

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Filters Fast® Replacement for Nortek 918396 MERV13 - 2-Pack
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Retail: $89.99

Our Price: $72.95

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Filters Fast® Brand Bryant FILXXFNC0121 MERV8 2-Pack
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Retail: $79.99

Our Price: $62.95

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Filters Fast® Replacement for Bryant FILXXFNC0021 MERV13 20X20X5 Air Filters 2-Pack
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Retail: $99.99

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Bryant FILXXFNC0121 MERV13 Air Filters - 2-Pack
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Retail: $99.99

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Goodman MU2020  MERV11 Comp - 2-Pack
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Retail: $89.99

Our Price: $67.95

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Five Seasons MU2020  MERV11 Comp - 2-Pack
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Retail: $89.99

Our Price: $67.95

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