sativa smoker
Member
the guy at grow shop tells me that that , 4 inch duct fans cant be used with carbon filters is right or is he just trying to sell me a more louder and expensive fan . even the makers say not to use with carbon filters its one that go in the ducting will it work as noise is a issue.![Question :?: :?:](/styles/smilies/icon_question.gif)
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![Question :?: :?:](/styles/smilies/icon_question.gif)
![Hit Wall :wall: :wall:](/styles/smilies/wall.gif)
![Weed :weed: :weed:](/styles/smilies/weed2.gif)