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  1. zannej

    True outer/inner diameter of ABS, PVC, & CPVC + trap arm length

    This is a general guide for people who need to know the actual outer and inner diameters of commonly used ABS, PVC, and CPVC pipes. It can be for figuring out the pipe size if there are no visible markings or determining what size hole needs to be drilled or if something can fit somewhere. There...