Revision history of "Air gap (Sanitary plumbing system)"

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  • (cur | prev) 11:11, 7 February 2017Joceil.infante (talk | contribs). . (246 bytes) (+246). . (Created page with "The unobstructed vertical distance through the free atmosphere between the outlet of a discharge or waste pipe and the overflow level of the receptacle into which it is discha...")