15 in General Purpose Roof Drain

SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for primary roof drainage, this unit features a robust cast iron body with a protective coating to resist corrosion in demanding exterior environments. The assembly includes a combination membrane flashing clamp and gravel guard to secure roofing materials while preventing debris from entering the drainage system. A low silhouette poly-dome is included to facilitate efficient water flow. This drain is ASME-, UPC-, and IPC- compliant, ensuring it meets rigorous industry standards for plumbing installations and structural water management.