The T&S Brass B-3972 is a reliable drain valve designed for efficient waste management. Featuring a lever handle for easy operation, this waste valve fits a 3-1/2" sink opening and includes a 2" drain outlet. It serves as a direct replacement for models B-3923 and B-3927, ensuring compatibility and seamless installation. Constructed for durability, the B-3972 provides a dependable solution for your plumbing needs.