4 inches furnace filters Air Purifiers

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12 x 24 x 4" MERV 8 Furnace / Air Conditioner Filters.  Case of 6 filters.
 
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16 x 20 x 4" MERV 8 Furnace / Air Conditioner Filters.  Case of 6 filters.
 
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Lennox Replacement Filter No. 75X67 GENUINE OEM (PCO-20C) Replacement Filter for Lennox Pure Air Purification system21"" x 26"" x 4"", Actual Size 21 1/4x26x4"" NEW MERV 10 2 Pack Special NEW Part No. X6667
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Lennox Replacement Filter No. 75x74 Genuine OEMFits model PCO-12C LennoxPure Air Purification SystemNEW MERV 10 (16 5/8 x 26 x 4"") 17x27x42 Pack Special New Part No. X6664
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Free Shipping. This is a great 4"" filter. It is made from 100% recycled materials and has a MERV rating of 8. If you have been searching for an affordable high quality pleated 4"" filter then this is the filter for you. Available in all sizes, sold in...
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Optimal fit for Aprilaire®/Spaceguard 2200/2250, Trion Air Bear®, and Honeywell® systems
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16 x 25 x 4" MERV 8 Furnace / Air Conditioner Filters.  Case of 6 filters. 
 
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20 x 25 x 4" MERV 8 Furnace Air Conditioner Filters.  Case of 6 filters. 
 
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20 x 24 x 4" MERV 8 Furnace / Air Conditioner Filters.  Case of 6 filters.
 
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18 x 24 x 4" MERV 8 Furnace / Air Conditioner Filters.  Case of 6 filters. 
 
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24 x 24 x 4" MERV 8 Furnace / Air Conditioner Filters.  Case of 6 filters.
 
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16 x 20 x 4" MERV 11 furnace / air conditioner filters.  Case of 6 filters. 
 
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20 x 20 x 4" MERV 11 furnace / air conditioner filters.  Case of 6 filters.
 
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16 x 25 x 4" MERV 11 Furnace / Air Conditioner filters.  Also used in ventilation, filtration, and commercial applications.  Case of 6 filters. 
 
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12 x 24 x 4" MERV 11 Furnace / Air Conditioner filters.  Ideal for use in residential homes and commercial applications.  Case of 6 filters. 
 
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20 x 25 x 4" MERV 11 furnace / air conditioner filters.  Case of 6 filters.
 
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24 x 24 x 4" MERV 11 Furnace / Air Conditioner Filters.  Case of 6 filters.  
 
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20 x 24 x 4 MERV 13 Furnace / Air Conditioner filter.  Filters meet the LEED Green Building requirements for Indoor Air Quality.  Case of 6 filters.9
 
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16 x 25 x 4" MERV 13 Furnace / Air Conditioner filters.  Filters meet the LEED Green Building requirements for Indoor Air Quality.  Case of 6 filters.
 
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16 x 20 x 4" MERV 13 Furnace / Air Conditioner filters.  Filters meet the LEED Green Building requirements for Indoor Air Quality.  Case of 6 filters. 
You'll find the best prices on 4 inches furnace filters in Air Purifiers when you shop online at bizrate. Do all your comparison shopping for Precisionaire, Lennox and Synfil Air Purifiers in one place. Compare models and see which online Appliance stores have the best merchant ratings. Make an informed decision on 4 inches furnace filters Air Purifiers before you buy. bizrate will help you with all of your holiday gift shopping needs. Buy 12 x 24 x 4"" MERV 8 Pleated Furnace Filters - 6 pk or 16 x 20 x 4"" MERV 8 Pleated Furnace Filters - 6 Pack.