How's My [REVISED] DIY Cool Tube? (PIX)

yo nice work whats the diameter of that bakeround jawn

tusseltussel said:

yo nice work whats the diameter of that bakeround jawn

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Not sure, but check out my how-to here

7th1der said:

Not sure, but check out my how-to here

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i got one and found that if you but some foam wetherstripping around it, it snugly fits into a 4" metal duct end maybe i'll post a picture later to show you