DuraBreeze Lite Carbon Filter, 12" x 40", 1700 cfmIn Store Location : @I12 DuraBreeze Lite Carbon Filter, 12" x 40", 1700 cfm Featuring open air aluminum mesh housing and a 1. 8 inch deep bed of RC412 Australian virgin activated carbon, the 12 inch by 40 inch DuraBreeze Lite Carbon Filter weighs in at only 58. 4 pounds, making it easier to move and suspend than its standard steel cousins. This filter is rated for airflow up to 1,700 cubic feet per minute and efficiently combats odors, dust and more