NIBCO 1-1/4" Female Copper Adapter is designed to provide a reliable connection between copper sweat or solder fittings and female pipe threads. This adapter is crafted to ensure a secure and durable fit, making it an essential component for plumbing and piping systems that require a transition from copper to threaded pipe connections. Its high-quality construction s long-lasting performance and ease of installation, i for both professional and DIY projects. Model Number: W01135D