and for the same buck you get a simple industrial filter that will be more effective then a home made one. hack, the used in every a/c, so head over to a store that carries those and you may get lucky to get them even cheaper then in a hydro-storeNo u can't. I just built 1. Spent:
£4 - 5" to 4" reducer
£8 - fencing support the carbon
£6 - sheet of cooking hood carbon filter
Total = £18
Looks the shit and works really well. For the base of the carbon filter I cut the base of a 50 cd container to leave a tube, then glued this to an old paint lid and stuck the fence around that, and the 5" to 4" reducer on the other end.
I'd be interested in more info on these a/c carbon filters..got any pics or links?and for the same buck you get a simple industrial filter that will be more effective then a home made one. hack, the used in every a/c, so head over to a store that carries those and you may get lucky to get them even cheaper then in a hydro-store