The Filtaroo filter has everything you would expect from a premium carbon filter. Manufactured using only finest Australian mined carbon, it offers minimal pressure drop through the fan whilst maintaining high performance in air scrubbing. The Filtaroo Filter also comes supplied with a free extra pre-filter, further improving durability. Filtaroo Filter gets the best Australian charcoal (carbon) virgin in the world and extracts from old deposits of millions of years. Its triple action provides better quality. Coal is selected and screened only for Filtaroo Filter, so the carbon filter is much better balanced with a better ability that all filters on the market. Our Australian coal RC412 has the best absorption capacity of the market. 1 gram of carbon RC412 covers an area up to 1000m². SPECIFICATIONS: Filter Size CFM M3/Hour M3/Min Tent Size 100mm (D) x 150mm (L) 120 200 3.33 < 2 m3 125mm (D) x 300mm (L) 300 500 8.33 < 6 m3 150mm (D) x 500mm (L) 500 850 14.17 < 11 m3 200mm (D) x 600mm (L) 770 1300 21.67 < 17 m3 250mm (D) x 800mm (L) 1200 2000 33.33 < 26 m3 300mm (D) x 1000mm (L) 2000 3250 54.17 < 43 m3 Carbon: RC412 Easy to install pre-filters Less dust Cylinder filled with virgin carbon Light weight aluminium green collar Metal Mesh for maximum air flow Premium carbon for pure air flow Extra pre-filter included