Description
SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for commercial roofing applications, this 4 in general purpose roof drain features a duco cast iron body equipped with an adjustable extension sleeve to accommodate varying roof thicknesses. The assembly includes a reversible collar and a combined flashing clamp and gravel stop to secure roofing membranes while preventing debris entry. A polyethylene dome protects the drainage system from blockage. This unit is ASME- certified and UPC- and IPC- compliant, ensuring adherence to North American plumbing standards. It is also low lead compliant for safe integration into municipal and private drainage systems. The inclusion of underdeck clamps provides secure mounting support for structural roof installations.