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Old 06-08-2021, 09:28 AM   #8 (permalink)
Piotrsko
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Join Date: Sep 2013
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Pipe hangar. It nails to the stud or joists from the outside between studs or joists They didn't have plumbers tape back then and cast iron is easy to cast and cheap. Spacing is about right for actual 2x4. Center hole is for vertical use keeping pipe in place
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