Got a cooltube reflector today, only prblem I am having is finding a way to get it in my tent and take up as little room as possible. This wouldn't be so hard but the cooltube is 6in. and all my current ducting, fans, filter, etc are all 4in. I have a 6 to 4in. reducer on it but it is taking up ALOT of room already, dunno how it is gonna work out but I will have something figured out here soon. Going to run one end off my carbon filter to the cooltube, then out of the cool tube out of the tent to the fan, and outside. Sound like a good plan? this in the end is goin to give me about anouther 6-8in. of growing room if not maybe a little bit more. Can't wait to get it all hooked up, the SS is starting to strech out and has almost caught up with the WB. I imagine it will eventually outgrow it.