CarboAir 65 Carbon FilterPlease note: This item is purchase to order. CarboAir The New Standard in Carbon Filters This listing is for the 10" 250mm 750mm CarboAir 2650m3 hr, which is currently the only filter in the CarboAir 65 range. CarboAir Carbon Filters are also available in 50mm, 60mm, 75mm and 100mm bed depths The 65mm CarboAir Filters set the bar for extraction, they are built to the exacting standards of Systemair makers of the ever dependable RVK fans and industry