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The UPONOR LF4710750 is a 90-degree elbow fitting designed for use with ProPEX expansion-style PEX pipe connections. Constructed from lead-free brass, this fitting meets modern plumbing code requirements for potable water systems. It accepts 3/4-inch nominal ProPEX connections on both ends, making it a standard directional fitting for routing PEX tubing through walls, floors, and mechanical spaces. Licensed plumbers and hydronic installers use this fitting in residential and light commercial water distribution and radiant heating systems where a 90-degree change of direction is required.
This elbow is suited for new construction and retrofit plumbing projects using the ProPEX expansion method. It is commonly installed in domestic hot and cold water supply lines, manifold branch connections, and radiant floor heating distribution systems. The ProPEX end style requires an expansion ring and a PEX expansion tool to create a watertight connection, making it part of the broader UPONOR ProPEX fitting system used throughout residential and commercial construction.
Designed as an OEM-style fitting for use within the UPONOR ProPEX expansion fitting system for 3/4-inch nominal PEX pipe in potable water and hydronic heating applications.
Installation requires a calibrated PEX expansion tool and the appropriate ProPEX expansion ring sized for 3/4-inch pipe. Shut off the water supply and relieve system pressure before beginning work. Follow all applicable local plumbing codes and IPC guidelines for PEX fitting installation. Do not use with non-expansion crimp or clamp-style PEX fittings, as the ProPEX end style is not interchangeable with those connection methods.
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