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The SHARKBITE UC454LFA10 is a reducing barb tee fitting designed for PEX tubing systems in residential and light commercial plumbing. It connects a 3/4-inch run to two 1/2-inch branch lines, making it a standard choice for trunk-and-branch or home-run distribution layouts. Constructed from brass, the fitting accepts standard PEX crimp rings or clamps over its barbed ends and creates a secure, leak-resistant joint when installed correctly. The UC454LFA10 ships as a 10-pack, supplying enough fittings for a full rough-in or a multizone installation in a single order.
This fitting is used in residential potable water supply systems and radiant heating applications where PEX tubing transitions from a 3/4-inch main line to 1/2-inch branch lines at fixture drops or zone splits. It is appropriate for both new construction and remodel work. Licensed plumbers and experienced pipe fitters are the primary installers. The 10-pack quantity suits contractors stocking a service van or staging a larger rough-in project.
Designed for use with standard 3/4-inch and 1/2-inch PEX-A, PEX-B, and PEX-C tubing in barb-crimp or clamp installations.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and ASTM F1807 or F2098 standards for PEX crimp and clamp connections. Shut off the water supply and relieve system pressure before cutting into any existing line. Use a calibrated crimp or clamp tool specific to the ring type and tubing size to ensure a full seal. Verify joint integrity with a pressure test before closing walls or concealing the installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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