old-school 1920s 4 inch cast-iron combination drain waste vent fitting. four inlets, one outlet and one vent • follow 📣 @plumbingstateofmind for more ☝️ #plumbing #plumbers #plumber #plumbproud #water #waste #old #school #cool #drain #clean | plumbingstateofmind
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old-school 1920s 4 inch cast-iron combination drain waste vent fitti…
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