dont know if im just fillin up a thread with useless questions or if any1 else is benefiting from this thread but i'm learning volumes along with other research so cheers guys:thumbsup:

ok so the next question is; so originally i was goin for a diy carbon scrubber(design i found on this site), but now i've decided to go with a vented reflector(which i'll prob make myself from a regular reflector as i cant get 1 local and i've access to a good workshop) so i'm thinkin i'll need an inline filter, has any1 ever made 1 out of 2 4"-6" reducers back 2 back with carbon in the 6" flanges and 4" duct on either side if ya know what i mean. guess my question is has any1 ever done anything like this or any opinions?

anyway cheers guys
peace out:hippy: