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The ELKHART PRODUCTS 9056900CB is a close-rough 90-degree elbow fitting engineered for copper sweat applications in residential and commercial plumbing systems. Part of the KLEENFIT product line, this fitting ships cleaned and bagged to meet the cleanliness requirements of solder-joint assembly without additional prep at the bench. The C x C (copper-to-copper) socket configuration accepts 3-inch copper tubing on both ends, making it a standard workhorse for large-diameter domestic water, hydronic, and mechanical piping runs. Weighing 1.920 pounds, it offers the mass and wall integrity expected in a full-size copper pressure fitting. Licensed plumbers and pipefitters are the primary installers on jobs where code requires sweat connections.
This fitting is suited for 3-inch copper pressure piping in residential and light commercial plumbing, hydronic heating, and HVAC mechanical piping. The close-rough geometry allows installation in tight framing conditions where a long-radius elbow would not clear the structure. The KLEENFIT cleaned-and-bagged specification makes it a preferred choice on projects where flux contamination or oxidation at the socket must be minimized prior to soldering.
Designed as an OEM-style sweat fitting compatible with standard 3-inch copper pressure tubing conforming to ASTM B88 Type L and Type K wall specifications, as used in residential and commercial plumbing and hydronic piping systems.
Installation of this fitting is performed by a licensed plumber or pipefitter using standard sweat-soldering tools and lead-free solder per applicable plumbing code (IPC or local equivalent). Shut off and drain the affected water or hydronic system completely before cutting into the line, and verify no pressure remains before soldering. Clean and flux mating tube ends per the solder manufacturer instructions even with a KLEENFIT factory-prepared fitting, as handling can introduce contamination. Allow the joint to cool fully before restoring system pressure and testing for leaks.
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