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4-5 Inch Air Filters

High Efficiency Air Conditioner and Furnace Media Filters

View our selection of 4 inch and 5 inch thick furnace filters and air conditioner filters.  This type of filter is usually housed in an "add-on" cabinet located either at the equipment, or possible install into the duct system.  These air filters offer much higher efficiency, and require less frequent changing than standard filters. These filters are ideal for households with pets, or occupants who have needs for better control of dust, pollen, and other respiratory irritants.  Brands include Honeywell, Aprilaire, Air Bear, ICP Carrier Bryant Comfortmaker, and Trane.




Product Image Item Name+ Price
Glasfloss Pleated Filters 16 x 20 x 4 MERV 10 Case of 6

Glasfloss Pleated Filters 16 x 20 x 4 MERV 10 Case of 6

Glasfloss ZL Series Pleated Filters MERV 10 Heavy-Duty Moisture Resistant Construction Galvanized Expanded Metal Backing Standard Size 4 in...
$114.87

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Glasfloss Pleated Filters 16 x 25 x 4 MERV 10 Case of 6

Glasfloss Pleated Filters 16 x 25 x 4 MERV 10 Case of 6

Glasfloss ZL Series Pleated Filters MERV 10 Heavy-Duty Moisture Resistant Construction Galvanized Expanded Metal Backing Standard Size 4 in...
$129.26

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Glasfloss Pleated Filters 18 x 24 x 4 MERV 10 Case of 6

Glasfloss Pleated Filters 18 x 24 x 4 MERV 10 Case of 6

Glasfloss ZL Series Pleated Filters MERV 10 Heavy-Duty Moisture Resistant Construction Galvanized Expanded Metal Backing Standard Size 4 in...
$167.74

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Glasfloss Pleated Filters 20 x 20 x 4 MERV 10 Case of 6

Glasfloss Pleated Filters 20 x 20 x 4 MERV 10 Case of 6

Glasfloss ZL Series Pleated Filters MERV 10 Heavy-Duty Moisture Resistant Construction Galvanized Expanded Metal Backing Standard Size 4 in...
$129.05

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Glasfloss Pleated Filters 20 x 24 x 4 MERV 10 Case of 6

Glasfloss Pleated Filters 20 x 24 x 4 MERV 10 Case of 6

Glasfloss ZL Series Pleated Filters MERV 10 Heavy-Duty Moisture Resistant Construction Galvanized Expanded Metal Backing Standard Size 4 in...
$167.74

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Glasfloss Pleated Filters 20 x 25 x 4 MERV 10 Case of 6

Glasfloss Pleated Filters 20 x 25 x 4 MERV 10 Case of 6

Glasfloss ZL Series Pleated Filters MERV 10 Heavy-Duty Moisture Resistant Construction Galvanized Expanded Metal Backing Standard Size 4 in...
$149.21

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Glasfloss Pleated Filters 24 x 24 x 4 MERV 10 Case of 6

Glasfloss Pleated Filters 24 x 24 x 4 MERV 10 Case of 6

Glasfloss ZL Series Pleated Filters MERV 10 Heavy-Duty Moisture Resistant Construction Galvanized Expanded Metal Backing Standard Size 4 in...
$171.89

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Honeywell FC2200A1009 Expandable Aprilaire Replacement Filter

Honeywell FC2200A1009 Expandable Aprilaire Replacement Filter

Honeywell Replacement for Aprilaire #201 FC2200A1009 Overview Replacement Expandapac™ Media Filters are for use in Research Products cabinet...
$62.95

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Honeywell FC2400A1005 Expandable Aprilaire Replacement Filter

Honeywell FC2400A1005 Expandable Aprilaire Replacement Filter

Honeywell Replacement for Aprilaire #401 FC2400A1005 Overview Replacement Expandapac™ Media Filters are for use in Research Products cabinet...
$68.20

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Honeywell Filter for Trane Perfect Fit TRN1427T1 2 Pk

Honeywell Filter for Trane Perfect Fit TRN1427T1 2 Pk

Trane Perfect Fit Replacement Filters by Honeywell The replacement filter is a high efficiency, long-life filter for Trane Perfect Fit media air...
$173.20

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