WATTS RD-300-F-4-R Epoxy coated cast iron roof drain with flashing clamp with integral gravel stop, heavy 10 ga. zinc plated steel deck flange with adjustable extension, self locking polyethylene dome (standard), and no hub (standard) outlet. (under-deck

WATTS RD-300-F-4-R Epoxy coated cast iron roof drain with flashing clamp with integral gravel stop, heavy 10 ga. zinc plated steel deck flange with adjustable extension, self locking polyethylene dome (standard), and no hub (standard) outlet. (under-deck clamp & sump receiver not required with "F" option), EXTERNAL WATER DAM