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- Assembled length is the total length less overlap 3″ to 12″ has 1 3/8″ overlap 14″ to 30″ has 1″ overlap
- Outside Diameter (OD) Sizes 3″ through 6″ in size plus 1/2″ Sizes 7″ through 30″ in size plus 1″
- The allowable minimum clearance to combustibles is 1”
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Type B Gas Vent Pipe & Fitting Specification Sheet













