4 in General Purpose Roof Drain

SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for commercial roofing applications, this 4 in general purpose roof drain features a durable Duco cast iron body designed for long-term structural integrity. The assembly includes a combined flashing clamp and gravel stop to ensure a secure, watertight seal at the roof membrane interface. A polyethylene dome is included to prevent debris from clogging the drainage system. This unit is ASME- certified and complies with UPC- and IPC- plumbing codes, meeting North American safety and performance standards for drainage infrastructure. The versatile design supports various pipe sizes ranging from 2 in to 12 in, providing a robust solution for managing water runoff on flat roof surfaces.