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The Uponor UPTFCAP12 is a TotalFit push-to-connect plug designed for 1/2 inch nominal pipe connections. It is made from engineered polymer and built to cap off open pipe ends quickly and securely. Plumbers and mechanical contractors use this fitting when they need to terminate a line without soldering, gluing, or threading. The push-to-connect design means the fitting locks onto the pipe in seconds with no tools required. This makes it a practical choice for rough-in work, pressure testing, and temporary or permanent line terminations. The UPTFCAP12 carries a pressure rating of 80 psi and a temperature rating of 200 degrees Fahrenheit, making it suitable for domestic hot and cold water systems, hydronic heating lines, and radiant floor applications. The engineered polymer construction resists corrosion and performs reliably across a wide range of plumbing environments. Uponor TotalFit fittings are compatible with PEX-A, PEX-B, CPVC, and copper tubing, giving installers flexibility on multi-material job sites. The plug measures 1.02 inches in length and 1.13 inches in outer diameter, keeping a compact profile that works in tight spaces. This type of cap fitting is a standard item on residential and light commercial plumbing jobs. Technicians rely on push-fit caps during pressure tests to seal lines before fixtures are installed. They are also used to isolate sections of a system during repairs or renovations. The UPTFCAP12 is a dependable, code-friendly solution for capping 1/2 inch lines without the need for heat or chemicals.
The Uponor UPTFCAP12 TotalFit plug offers fast, tool-free termination for 1/2 inch pipe lines with a reliable pressure and temperature rating suited for residential and light commercial plumbing systems.
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