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The MUELLER INDUSTRIES W70109 is a 4 X 3 inch copper DWV sweat coupling designed for sanitary plumbing applications. This coupling is made from durable wrot copper, ideal for non-pressurized drainage systems. It features a solder joint design for secure connections, and it meets a variety of installation needs in DWV systems.
This coupling is essential for creating secure connections in DWV plumbing systems, allowing efficient drainage.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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