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The VIEGA STTRCOU-112 is a 1-1/2 inch lead-free bronze MegaPress transition coupling designed to connect CTS (copper tube size) pipe to IPS (iron pipe size) pipe in pressurized plumbing systems. This press-connect fitting eliminates the need for open flame or soldering, making it a reliable choice for tight spaces and fire-restricted environments. The lead-free bronze construction meets drinking water compliance standards, and the MegaPress press-fit system delivers a secure, repeatable connection that licensed plumbers trust for both new construction and retrofit work.
This transition coupling is suited for residential and light commercial plumbing applications where a CTS-to-IPS pipe transition is required. Typical scenarios include connecting copper tubing runs to threaded or rolled-groove iron pipe sections, or transitioning between different pipe material systems in mechanical rooms, utility spaces, and in-wall rough-in work. The 1-1/2 inch size is common in main distribution lines, domestic hot and cold water systems, and hydronic heating supply and return piping.
Designed as an OEM-style press-fit transition fitting for use in residential and commercial plumbing systems requiring a 1-1/2 inch CTS-to-IPS connection within the VIEGA MegaPress press-fit fitting system.
Installation must be performed by a licensed plumber using a VIEGA-compatible press tool and the correct jaw or ring set for the MegaPress system at this pipe size. Shut off and depressurize the water supply and drain the line before making any connections. Inspect pipe ends for burrs, debris, and out-of-round conditions before inserting into the fitting. Always verify local plumbing code requirements, including those referenced in the IPC, before completing the installation.
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