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The SHARKBITE UA23102A25 is a 1/2 inch PEX-A expansion sleeve ring sold in a pack of 25, designed for use with PEX-A pipe in expansion-style fitting connections. The sleeve ring seats around the PEX-A pipe and is expanded using a PEX expansion tool before the fitting is inserted, creating a pressure-tight joint as the pipe contracts back to its original size. A chamfered interior edge eases pipe insertion, while interior cross-hatch texturing grips the pipe to prevent the ring from sliding out of position before expansion. Plumbers and pipefitters working with PEX-A systems install these rings as a standard part of the expansion connection process.
These sleeve rings are used in residential and light commercial plumbing systems wherever PEX-A pipe connects to brass or poly expansion fittings. They are suited for in-wall rough-in, under-slab, and radiant heating applications where a reliable, long-term connection is required. The integrated sleeve stop feature accurately positions the ring on the pipe, reducing the chance of misalignment during installation and ensuring a consistent joint every time.
Designed for use with 1/2 inch PEX-A pipe and compatible brass and poly expansion fittings in PEX-A expansion-style plumbing systems.
Installation requires a PEX expansion tool sized for 1/2 inch pipe. Shut off the water supply and relieve system pressure before beginning any PEX pipe work. Slide the sleeve ring onto the pipe before expanding, ensuring the ring stop is flush with the pipe end. Follow IPC and local plumbing code requirements for PEX-A expansion connection procedures.
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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