Ionic Air Purifiers Hepa Air Purifiers Electrostatic Air Purifiers IQAir Purifiers Users Manuals Furnace Filters 1" Furnace Filters 2" Furnace Filters 4" Furnace Filters 5" Honeywell Replacements Filter Gage Accessories Diffusers About Us Contact Us FAQ Store Policies Site Map Selecting The Right Air Purifier Resources Airborne Pollutants Home > Store > Furnace Filters 4"      Page 1 of 3 1 2 3 ·  Next 90001 12 x 24 x 4 Merv 12 - Single $0.00 $22.97 90002 Box of 6- 12 x 24 x 4 Merv 12 $107.94 $82.97 90003 16 x 20 x 4 Merv 12 - Single $0.00 $22.97 90004 Box of 6- 16 x 20 x 4 Merv 12 $107.97 $89.97 90005 16 x 24 x 4 Merv 12 - Single $0.00 $22.97 90006 Box of 6- 16 x 24 x 4 Merv 12 $107.94 $89.97 90007 16 x 25 x 4 Merv 12 - Single $0.00 $22.97 90008 Box of 6- 16 x 25 x 4 Merv 12 $107.94 $89.97      Page 1 of 3 1 2 3 ·  Next Air Purifier Professionals United States of America © Copyright 2010 - Air Purifier Professionals Privacy Policy