The T&S Brass B-3952-XL is a durable waste drain valve designed for efficient drainage in sinks with a 3-1/2" sink hole. It features a long twist handle for easy operation, ensuring quick and reliable waste management. The valve includes a 1-1/2" NPT female outlet and a 2" NPT male outlet, providing versatile installation options. Constructed from high-quality materials, this drain valve is built to withstand regular use, making it an ideal choice for both commercial and residential applications.