jsut put the bottom of the bottle in the opening of the filter.but put it in upside down so thatit will rest on the carbon and the cut part should match somewhat with the cut part of the rest of the bottle.
c of green Reviewed by c of green on . ? i have seen some how to carbon filter threads but the average cost after the fan is $150+.i am getting ready to build another 10$ carbon filter and was wondering if you would like a how to?it is good for a small cab grow or a drying room.i currently have one in my veg with 18 plants...cant smell a thing unless i put my nose to the plant(then it is quite potent) Rating: 5