Flanigan
Well-Known Member
Also I priced the 6 inch. I thought you said it and filter with speed control so why you saying 4 now? The 6 inch combo was 150$ but so was the 4 or 8I can only speak for how I size fans for industrial ventilation. CFMx60/Area means all day long a 4" fan that does 184cfm dialed back a tad is the correct fan.... If it was me I'd save my money and get a 4"...in fact I did and it works great!