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The MUELLER STREAMLINE 9055250 is a 607 series 90-degree copper elbow designed for sweat-connect (C x C) copper tubing systems. It accepts 1/4 inch nominal copper tubing on both ends and is joined using standard soldering technique. This fitting is domestically manufactured from copper, making it a reliable choice for pressure-rated plumbing and refrigeration line connections. Plumbers, HVAC technicians, and pipefitters install this type of elbow when a 90-degree directional change is needed in a copper line set or water supply run.
This elbow is suited for residential and light commercial applications including potable water distribution, hydronic systems, and refrigeration or HVAC line connections where 1/4 inch copper tubing is specified. Its C x C end style means both ends accept copper tubing that is cleaned, fluxed, and soldered in place using standard sweat-fitting procedures. The compact 1/4 inch size is common in refrigeration service and small-diameter water supply lines.
Designed as an OEM-style replacement and general-use fitting for 1/4 inch nominal copper tubing systems using sweat (C x C) connections in plumbing, HVAC, and refrigeration applications.
Installation is performed by a licensed plumber or HVAC technician using standard sweat-soldering tools including a torch, flux, and lead-free solder per applicable codes. Shut off the water supply or isolate the refrigerant circuit and relieve system pressure before cutting into any existing line. Ensure tubing ends are cut square, deburred, and cleaned thoroughly before applying flux and sweating the joint. Follow local plumbing codes and ASTM soldering standards for potable water or refrigeration service as applicable.
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