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The SHARKBITE UC514LFA is a 1/2-inch brass PEX barb plug designed to cap off an open PEX tubing line during pressure testing or permanent termination. This fitting provides a secure, leak-resistant seal at the end of a PEX run and is suited for both potable water distribution systems and hydronic heating applications. The barb-style connection integrates with standard PEX barb fitting systems, making it a straightforward solution for licensed plumbers and HVAC technicians working on residential or light commercial piping. It meets NSF/ANSI 61 and NSF 372 standards, confirming its suitability for drinking water contact applications.
This plug is intended for use in residential and light commercial PEX piping systems where a line end must be capped for pressure testing or closed off after a system modification. It is compatible with both stainless steel clamp ring systems and copper crimp ring systems, sold separately. Typical installation scenarios include new construction rough-in, remodel work, and hydronic radiant heating loop terminations where a barb-style end cap is required.
Designed for use with 1/2-inch PEX tubing in potable water distribution and hydronic heating systems using stainless steel clamp or copper crimp ring connections. Clamp rings and crimp rings are sold separately.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and ASTM F1807 guidelines. Depressurize and drain the water line before fitting installation. Use the appropriate PEX clamp or crimp tool rated for the ring system being used. Do not overtighten or use pipe dope on the barb connection, as the barb-to-tubing interface provides the seal.
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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