....along with keeping that duct work as straight as possible.....


Make sure your intake ventilation is equal to or at best ...double that of what the inline duct fan moves....this will assist your movement of air as well.:thumbsup:
Organic Rasta Reviewed by Organic Rasta on . Fan for cool tube I just made my first pyrex cool tube for my 250 hps, i got 4" x 36" ducting (including the tube itself) and i was thinking about getting one of these fans, or something similar. http://www.bghydro.com/BGH/Itemdesc.asp?ic=AEFSC04&eq=&Tp= Does anyone think i'll need more?? I don't have lots of money for a blower so that is out of the question, and also if this is enough should I have it sucking the warm air out or blowing air in?? Rating: 5