I am going to make this Carbon filter and was wondering to those who have tried using it with an inline fan which will do to attach to the filter and if the 6" is overkill?
4" Inline Duct Fan 80 cfm
http://www.htgsupply.com/viewproduct...roductID=46434
6" Inline Duct Fan 250 cfm
http://www.htgsupply.com/viewproduct...roductID=46447
Thanks!