The Kingston Brass CCU4108 1-3/4" Wall Union Extension is a reliable plumbing component designed to extend existing wall connections for fixtures. Crafted with durable brass construction, these extensions ensure longevity and resistance to corrosion within your plumbing system. Featuring a 1-3/4" connection size, it provides a secure and leak-proof joint for various water supply lines. This extension offers a practical solution for adjusting fixture placement during installation or renovation projects, providing flexibility in plumbing layouts. Itâ??s particularly useful when dealing with older installations or when needing to accommodate specific fixture depths. The threaded connections allow for easy installation and compatibility with standard plumbing fittings. These extensions are designed to create a stable and dependable connection point, minimizing the risk of drips or failures. The cylindrical shape and robust build contribute to its overall strength and stability. This wall union extension is a functional addition to any bathroom or kitchen plumbing setup, ensuring a seamless and efficient water supply..