The T&S Brass B-3940-XL is a high-quality waste drain valve designed for efficient drainage in commercial and industrial sinks. It features a 3-inch sink hole compatibility, ensuring a secure fit for various sink installations. The long twist handle allows for easy operation, providing quick access to open and close the drain. It includes a 1-1/2-inch NPT male adapter for straightforward connections and a 2-inch NPT male outlet for optimal drainage flow. This durable and reliable drain valve is ideal for maintaining cleanliness and functionality in busy kitchen environments.