The T&S Brass B-3970-VR is a durable waste drain valve designed for efficient drainage in commercial sinks. It features a 3-1/2" sink hole compatibility and a lever handle for easy operation. The vandal-resistant flat strainer ensures reliable performance while preventing debris from clogging the drain. It includes a 1-1/2" NPT male adapter for secure installation and a 2" NPT male outlet for optimal drainage flow. Ideal for high-traffic environments, this waste drain valve combines functionality with robust construction.