4 in Dual Outlet Bi-Functional Roof Drain with Overflow

SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for efficient water management, this bi-functional roof drain features a deep sump body constructed from powder coated cast iron for structural integrity. The unit includes a combination membrane flashing clamp and gravel guard to secure roofing materials while preventing debris from entering the drainage system. Designed with a primary outlet connection at a forty-five degree angle, it facilitates effective water flow. This assembly is ASME-, UPC-, and IPC- compliant, ensuring it meets rigorous plumbing standards for commercial and industrial roof drainage applications.