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The MUELLER STREAMLINE w 01047 is a 1-inch rolled stop coupling with a C x C (copper-to-copper) solder joint end configuration, designed for use in pressurized potable water supply systems. Manufactured from wrot copper to meet applicable ASME standards, this fitting delivers consistent, leak-free joints when installed by a licensed plumber. The rolled stop positions the pipe end at a precise depth inside the socket, ensuring uniform solder distribution and a reliable seal. This is a standard pressure fitting intended for above-ground supply line applications.
This coupling is suited for residential and light commercial plumbing installations where copper pipe is joined in above-ground potable water supply systems. The C x C end configuration accepts standard copper tubing on both ends and is compatible with common soft or hard-temper copper pipe in the 1-inch size. It is a go-to fitting for new construction, repipe projects, and repair work where a mid-run coupling or pipe extension is needed.
Designed as an OEM-style solder-joint replacement coupling for above-ground potable water supply systems using 1-inch copper pipe and standard C x C fittings.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off and depressurize the supply line and drain all water from the pipe before cutting or soldering. Clean pipe ends and fitting sockets thoroughly with emery cloth and apply an approved flux before soldering. Do not use open flame near combustible materials and allow the joint to cool fully before restoring pressure.
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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