CannaReview
Well-Known Member
Na if its a 4" vortex/can fan style fan you go to the next filter no problem. The next on in 6" hole and 20 inches long.maybe 6-7. I bought the 195 cfm mountain air. The guy at the hydro shop said the bigger one is too big for my tent size and that its too big for my 190 cfm fan meaning the ratio of the fan/filter is too big. I hope he is right. Do people here agree?