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The MUELLER STREAMLINE PDWVDBLFIX2112112112 is a double fixture tee hub fitting used in drain, waste, and vent (DWV) piping systems. It provides a single fitting solution for connecting two branch fixtures to a common drain line. The main run measures 2 inches and all three branch openings measure 1-1/2 inches, making it well suited for back-to-back or side-by-side fixture installations. Licensed plumbers install this type of fitting during rough-in work on residential and light commercial DWV systems.
This double fixture tee hub is designed for use in gravity-flow drain and vent applications where two fixtures share a common waste line. Typical installations include back-to-back lavatory pairs, dual sink setups, or similar configurations where branch connections at 1-1/2 inches are required off a 2-inch main. The hub-style ends accept standard hub-and-spigot pipe for solvent-weld or lead-and-oakum connections depending on the pipe material in use.
Designed as an OEM-style replacement fitting for residential and light commercial DWV piping systems using standard hub-end pipe in a 2-inch by 1-1/2-inch configuration.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Ensure all supply water to the affected fixtures is shut off and drains are clear before beginning work. Hub connections require proper cleaning, priming, and solvent cementing per the pipe and fitting manufacturer instructions. Verify correct flow direction and venting provisions before closing in the rough-in.
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