The T&S Brass B-3950-XL is a high-quality waste drain valve designed for efficient drainage in commercial and residential sinks. It features a 3-1/2" sink hole compatibility, ensuring a secure fit for standard installations. The long twist handle allows for easy operation, providing quick access to open and close the drain. With a 1-1/2" NPT male adapter and a 2" NPT male outlet, this valve offers versatile plumbing connections, making it suitable for various applications. Constructed for durability and reliability, the T&S Brass B-3950-XL is an essential component for any sink setup.