6 in General Purpose Roof Drain with Aluminum Dome

SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for commercial roofing applications, this 6 in roof drain features a durable Duco cast iron body designed for long-term structural integrity. The assembly includes an adjustable extension sleeve to accommodate varying roof deck thicknesses and a reversible collar for versatile installation. A combined flashing clamp and gravel stop ensures a secure, watertight seal at the roof membrane, while the integrated polyethylene dome prevents debris from clogging the drainage system. This unit is ASME- certified and UPC- and IPC- compliant, meeting rigorous North American plumbing standards for drainage performance and safety in roof water management systems.