Kingston Brass CCU4102 Wall Union Extensions offer a reliable connection point for plumbing fixtures extending from the wall. These extensions, crafted from durable solid brass, feature a 1-3/4" diameter opening ensuring compatibility with standard pipe sizes for long-term use. Designed to create a secure, leak-proof seal when installed, these extensions simplify plumbing connections and reduce potential maintenance, especially when existing pipes are recessed. The flanged design, with included nuts and washers, provides a stable mounting surface, distributing pressure evenly and preventing wall strain. Ideal for connecting faucets, showerheads, or water supply lines to in-wall plumbing, the threaded connection allows for easy assembly and disassembly, making it practical for new construction or renovation. Its robust construction withstands daily use and varying water pressures. This extension offers a functional solution for extending plumbing connections, blending with traditional décor..