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+
Lennox Healthy Climate MERV 11 Filter X0581 Filter 2 Pack

Lennox Healthy Climate MERV 11 Filter X0581 Filter 2 Pack

Genuine Lennox X0581 OEM Replacement MERV 11 Filter 2 Pack 16 X 25 X 3 Lennox X0581 Overview This OEM MERV 11 X0581 filter from Lennox offers high...
$122.64

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Lennox Healthy Climate MERV 11 Filter X6664 Filter 2 Pack

Lennox Healthy Climate MERV 11 Filter X6664 Filter 2 Pack

Genuine Lennox X6664 OEM Replacement MERV 11 Filter 2 Pack Lennox X6664 Overview This OEM MERV 11 X6664 filter from Lennox offers high efficiency....
$122.64

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Air Bear Replacement Filters 255649-103 (2 Pack)

Air Bear Replacement Filters 255649-103 (2 Pack)

Trion Air Bear Replacement Filters Air Bear Filter Overview Using highly efficient, 100% electrostatic charged synthetic material and an extended...
$124.32

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Lennox Healthy Climate MERV 11 Filter X6667 Filter 2 Pack

Lennox Healthy Climate MERV 11 Filter X6667 Filter 2 Pack

Genuine Lennox X6667 OEM Replacement MERV 11 Filter 2 Pack Lennox X6667 Overview This OEM MERV 11 X6667 filter from Lennox offers high efficiency....
$125.79

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Trane Perfect Fit Replacement Filter BAYFTAH21M2 - 2 Pack

Trane Perfect Fit Replacement Filter BAYFTAH21M2 - 2 Pack

Trane Perfect Fit Replacement Filter BAYFTAH21M2 FLR06072 Genuine Trane OEM Replacement Filter MERV 8 Rating 21 x 21-1/2 x 5 Replace @ 6 - 12...
$125.95

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Trane Perfect Fit Replacement Filter BAYFTAH23M2 - 2 Pack

Trane Perfect Fit Replacement Filter BAYFTAH23M2 - 2 Pack

Trane Perfect Fit Replacement Filter BAYFTAH23M2 FLR06073 Genuine Trane OEM Replacement Filter MERV 8 Rating 21 x 23-1/2 x 5 Replace @ 6 - 12...
$125.95

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Trane Perfect Fit Replacement Filter BAYFTAH26M2 - 2 Pack

Trane Perfect Fit Replacement Filter BAYFTAH26M2 - 2 Pack

Trane Perfect Fit Replacement Filter BAYFTAH26M2 FLR06074 Genuine Trane OEM Replacement Filter MERV 8 Rating 21 x 26 x 5 Replace @ 6 - 12...
$125.95

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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 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 12 x 24 x 4 MERV 10 Case of 6

Glasfloss Pleated Filters 12 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...
$130.52

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