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Old 08-14-2010, 05:12 PM   #6505
Wandering around with a bag of matchlight, looking for a match.
Join Date: 05-25-10
Location: Robertsdale Alabama
Default Uds air vents

I've seen a lot of usds that have three air vents on the bottom; why three and not just one?
kjdave is offline   Reply With Quote