SHARKBITE UC518LFA — 3/4 IN PEX BARB PLUG (LEAD‑FREE DZR BRASS)

The SharkBite UC518LFA is a 3/4‑inch PEX barb plug designed to cap or terminate unused PEX lines in potable‑water or hydronic‑heating systems. This plug provides a secure, permanent seal when used with standard PEX crimp rings or stainless‑steel clamp systems, making it an essential component for system isolation, line testing, or permanent dead‑end terminations.

Made from lead‑free DZR brass, the UC518LFA offers excellent corrosion resistance and long‑term durability. It is suitable for both residential and commercial applications and integrates seamlessly with any approved PEX tubing type (A, B, or C). Whether used during installation, repair, or system modification, this plug provides a reliable, leak‑free solution.

DETAILS

• Manufacturer: SharkBite
• Model Number: UC518LFA
• Size: 3/4 in. barb
• Material: Lead‑free DZR brass
• Connection Method: Crimp or clamp (PEX barb)
• Working Pressure: Up to 200 psi
• Working Temperature: Up to 200°F
• Applications: Potable water, hydronic heating, capping unused PEX lines
• Suitable For: PEX and PE‑RT tubing

KEY FEATURES

• Lead‑free DZR brass for superior corrosion resistance
• Low‑cost, easy installation using standard PEX crimp/clamp tools
• Reliable sealing for unused or dead‑end lines
• Approved for potable‑water and hydronic systems
• Ideal for testing, repairs, and permanent terminations

APPLICATIONS

• Capping unused PEX stubs
• Pressure testing PEX systems
• Hydronic loop terminations
• Temporary or permanent plumbing isolation
• Remodels and system modifications