Elecwish 6&rdquo; Carbon Charcoal Inline Fan Air Filter Odor Control Scrubber Grow Tent Accessories Carbon filters are designed air purification andodors removal Carbon Material: RC412 activated carbon from Australia Covered by Flannel preventing dust as well as reducing noise Set Up in minutes, Easy to install and operate; Flange Diameter: 6" ; Total size: 9 (diameter) X 14.4 (length); Carbon Height: 15.8"; Carbon Thickness: 1.5";