The T&S Brass B-3990-SB is a modular waste drain valve designed for efficient drainage in sinks. It features a convenient push-pull handle for easy operation and fits a 3-1/2" sink opening. The unit includes an overflow outlet with a cap and sealing washer, ensuring reliable performance. A basket strainer is included to prevent debris from clogging the drain. The stainless steel body offers durability and resistance to corrosion. It has a 2" NPT male outlet and a 1-1/2" female outlet for versatile installation. An installation tool is also provided for added convenience. This product is cCSAus certified, ensuring compliance with safety standards.