The 3/8" OD x 5/8" (1/2") SWT Brass Compression Coupling is a lead-free fitting designed for secure plumbing connections. Constructed from premium brass, it offers excellent resistance to corrosion and wear. With a 3/8" outer diameter and a 5/8" sweat connection, this coupling is perfect for various applications, including water supply and heating systems. It complies with industry standards, ensuring safety and reliability. This coupling is easy to install and provides a robust, leak-proof connection, making it an essential component for both DIY projects and professional plumbing installations.