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The MUELLER INDUSTRIES 685768241881 is a 2-inch copper DWV soil pipe adapter designed for drain, waste, and vent plumbing systems. It connects copper DWV pipe to hub-style soil pipe using a sweat (solder) inlet on one end and a spigot outlet on the other. This fitting is manufactured domestically from copper and follows the shorter solder cup geometry standard for non-pressurized sanitary applications. Licensed plumbers install this adapter where a copper DWV run transitions to a cast iron or PVC soil pipe hub, a common rough-in scenario in both new construction and retrofit work.
This adapter is suited for residential and light commercial DWV installations where a copper line meets a soil pipe hub connection. The sweat end accepts a standard 2-inch copper DWV pipe soldered in place, while the spigot end inserts into a receiving hub fitting. It is appropriate for horizontal drain lines, vertical stacks, and branch connections in non-pressurized sanitary systems. The domestic manufacture designation indicates the fitting meets U.S. production standards consistent with plumbing code requirements.
Designed as an OEM-style replacement or new-installation fitting for 2-inch copper DWV systems requiring a transition from sweat copper to a spigot soil pipe hub connection.
Installation should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off the water supply and ensure the drain system is clear before cutting into any existing line. Clean and flux all copper surfaces thoroughly before soldering the sweat connection; use lead-free solder in potable and sanitary systems as required by code. Do not use this fitting in pressurized systems.
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