Hey Im about to hit flower in a month and need to prepare, I have 6" ducting and am looking for a higher end carbon filter not sure where I should buy from or which brand?
I'm not sure who would have the best price, but I use a Phresh filter and have no complaints. Can, Rhino, Phat and Mountain Air all seem to get good reviews as well.
I use a CAN fan & filter. Pro industrial equipment.
I would look at them as the industry standard. Even if you don't buy CAN, go to their website & use for comparison purposes (dimensions, carbon bed thickness, cfm, cost)
I use phresh filters and the few ppl that kniw i grow, the first remark out of their mouth is i cant even smell anything when standing in the room with the tent. That is until i open it up!