4" or 6" fan/filter for 2x4' tent

If you buy the 6" you don't need a reducer, you can turn the speed down if you want and it will be good for upgrade. Watch the volumes of the fans though - i have 2 x 6 inch fans and one is 550 m while the other cheaper one is only 330m so i have to slow the better one down a bit...

spek9 said:

FWIW, this is the kit I'm going to order (the 6" setup with variable speed controller).

http://www.ebay.ca/itm/4-6-8-in-Inline-Duct-Fan-Carbon-Filter-Foil-Ducting-Combo-Speed-Controller-/280934958500?pt=LH_DefaultDomain_2&var=&hash=item41690745a4

Look reasonable? (Free shipping so it will come in under $250 CDN tax included).

-spek

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only problem I see is I don't see where it says the cfm of the filter. If its less then the fan, and the fan is running at full smell will get through. And I suggest a 6 inch