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....EFSC04&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??
killakalimist Reviewed by killakalimist 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