wandrew640
Member
Okay, probably a stupid question. Buuut, if I put a 6 inch fan with a filter on it on a 4 inch PVC pipe about ten ft long, would I be able to get slightly more cfm through it than with the 4 inch fan? I'll have an 11x6x80" room with two 3x3s in it, they will have a 4 inch fan and filter pulling from both of them exhausting into the 11x6. Then I want the 11x6 venting outside via an existing 4 inch PVC pipe. Can I do it? How? Please help