The T&S Brass B-3960-XS is a reliable waste drain valve designed for efficient drainage in sinks with a 3-1/2" sink hole. It features a short lever handle for easy operation, allowing for quick opening and closing. The valve includes a 1-1/2" NPT male adapter for seamless installation and a 2" NPT male outlet for optimal waste flow. Constructed for durability, this drain valve is an essential component for any kitchen or commercial sink setup.