4 in Overflow Roof Drain

SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for efficient water management, this overflow roof drain features a robust epoxy coated cast iron body designed to withstand harsh environmental exposure. The assembly includes a flashing clamp and an integral internal standpipe to maintain proper water levels, while the self-locking polyethylene dome prevents debris from clogging the drainage system. This unit is ASME- and UPC/IPC- compliant, ensuring it meets rigorous plumbing safety and performance standards for commercial roofing applications. The no-hub outlet configuration allows for straightforward connection to standard piping systems, providing a secure and reliable drainage solution for flat roof installations.