The T&S Brass B-3992-01 is a modular waste drain valve designed for efficient drainage in sinks. It features a convenient pull handle for easy operation. The valve accommodates a 3-1/2" sink opening and includes a 2" NPT male outlet along with a 1-1/2" female outlet. Additionally, it comes with an overflow tube and head assembly, ensuring reliable performance and effective waste management. Ideal for both commercial and residential applications, this drain valve combines functionality with durability.