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.

Displaying 11 to 20 (of 123 products)
  Item Name- Price
Trane FLRQB5DN17M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5DN17M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5DN17M11- QuikBox Replacement Media Filter 2-Pack, MERV 11 - 16.7" x 20" x 4.7" FLRQB5DN17M11 Overview This is a Trane...
$94.45
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Trane FLRQB5AH26M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5AH26M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5AH26M11- QuikBox Replacement Media Filter 2-Pack, MERV 11 - 25.5" x 20" x 4.7" FLRQB5AH26M11 Overview This is a Trane...
$104.95
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Trane FLRQB5AH23M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5AH23M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5AH23M11- QuikBox Replacement Media Filter 2-Pack, MERV 11 - 22.7" x 20" x 4.7" FLRQB5AH23M11 Overview This is a Trane...
$86.05
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Trane FLRQB5AH21M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5AH21M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5AH21M11- QuikBox Replacement Media Filter 2-Pack, MERV 11 - 20.7" x 20" x 4.7" FLRQB5AH21M11 Overview This is a Trane...
$104.95
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Trane FLRQB5AH18M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5AH18M11 QuikBox Replacement Filter 2-Pack MERV 11
Trane FLRQB5AH18M11- QuikBox Replacement Media Filter 2-Pack, MERV 11 - 17.75" x 19" x 4.7" FLRQB5AH18M11 Overview This is a Trane...
$120.70
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Protech MERV 8 Rheem-Ruud Replacement Filter 540045 2 Pk
Protech MERV 8 Rheem-Ruud Replacement Filter 540045 2 Pk
Direct Replacement Filters for Rheem/Ruud 540015 MERV 8 Filter 2 Pack Protech 540045 Overview Custom-sized Merv 8 media filters for replacement of...
$176.19
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Protech MERV 8 Rheem-Ruud Replacement Filter 540043 2 Pk
Protech MERV 8 Rheem-Ruud Replacement Filter 540043 2 Pk
Direct Replacement Filters for Rheem/Ruud 540013 MERV 8 Filter 2 Pack Protech 540043 Overview Custom-sized Merv 8 media filters for replacement of...
$144.80
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Protech MERV 8 Rheem-Ruud Replacement Filter 540041 2 Pk
Protech MERV 8 Rheem-Ruud Replacement Filter 540041 2 Pk
Direct Replacement Filters for Rheem/Ruud 540011 MERV 8 Filter 2 Pack Protech 540041 Overview Custom-sized Merv 8 media filters for replacement of...
$141.65
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Nordyne 918759 Replacement Filter MERV 11
Nordyne 918759 Replacement Filter MERV 11
Nordyne MERV 11 Replacement Media Filter Part # 918759 Actual Size = 22.5 x 22 x 5.25 - Fits all "C" Size Cabinets (Example...
$107.52
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Nordyne 918759 MERV 11 Replacement Filter 2 Pack
Nordyne 918759 MERV 11 Replacement Filter 2 Pack
Nordyne MERV 11 Replacement Media Filter Part # 918759 2 Pack Actual Size = 22.5 x 22 x 5.25 - Fits all "C" Size Cabinets (Example...
$202.44
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Displaying 11 to 20 (of 123 products)