The Krowne Metal 22-404 Lever Waste Valve is designed for efficient drainage in commercial sinks. It features a 3-1/2" sink opening and a 2" NPS drain outlet, ensuring optimal flow. The valve includes a 1-1/2" reducer with a rubber washer for a secure fit and a 4-1/2" flange for easy installation. Constructed with a stainless steel strainer and handle, it offers durability and reliability. Additionally, the 1-1/4" overflow outlet comes with a cap, and the drain outlet is equipped with 2" NPS outer threads and 1-1/2" female inner threads, compatible with overflow head model# 22-500 and overflow elbow model# 22-501. This lever waste valve is an essential component for maintaining efficient drainage in your kitchen setup.