This epoxy coated, cast iron, high volume roof drain features a flashing clamp with an integral gravel stop, a self-locking nickel bronze dome, 137 sq-in of free area, an underdeck clamp and a 3 in no hub outlet. It can be purchased BAA compliant. A galvanized body and flashing clamp, a sump receiver, vandal proofing, deck flange with adjustable extension, side outlet and a variety of domes are among other available options.