Hey all, I bought x2 120mm PC fans, each rated at 133.6CFM and I was wondering what would be the best material to use for the tube, and what configuration should I use to set it up? Originally I was going to use 4" steel ducting, but the fans are 4.7" each, so I was considering PVC, but the fans are square... I'm somewhat perplexed now and advice would be muchly appreciated!
http://forum.grasscity.com/grow-roo...p*-light-proof-mounting-axial-box-pc-fan.html you should take the time and read this guys stuff.... you could learn a ton.... make sure to rep the guy who made the tutorial... its a nice way of saying thanks