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The ELKHART PRODUCTS COU-212 is a WROT copper solder coupling with an internal stop, designed for joining 2-1/2 inch copper tubing in a C x C (copper-to-copper) sweat configuration. The integral stop centers pipe ends during assembly and ensures consistent joint depth, reducing the risk of incomplete solder bonds. At 0.624 pounds, this Model 100 coupling is built from wrought copper for reliable performance in pressurized water supply and distribution systems. Licensed plumbers and pipefitters install this fitting in both new construction and retrofit applications where a permanent, leak-free connection is required.
This coupling is suited for residential and light commercial plumbing systems where 2-1/2 inch copper tubing is used in water distribution, hydronic heating, or mechanical room piping. The WROT designation indicates wrought copper construction, which provides tighter dimensional tolerances and a denser grain structure compared to cast fittings. The C x C end configuration accepts standard copper tube on both ends and requires soldering with appropriate flux and filler metal per applicable codes.
Designed as an OEM-style replacement and standard-use fitting for 2-1/2 inch copper tube systems using sweat solder C x C connections in residential and commercial plumbing installations.
Installation should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and local authority having jurisdiction requirements. Shut off and drain the water supply before cutting into any existing line. Clean and deburr tube ends, apply appropriate flux, and sweat solder both joints fully before restoring pressure. Do not apply heat to a fitting that has not been fully dried, as residual moisture can prevent proper solder flow.
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