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This WATTS® drains cast iron, high volume roof drain is epoxy-coated for long life and durability. It features a flashing clamp with integral gravel stop, a self-locking polyethylene dome, a sump receiver and an underdeck clamp. 137 sq-in of free area allows for ample, quick drainage and a 6 in no hub outlet allows for easy installation.
WATTS® RD-300 Series RD-306-B-D-K High Volume Roof Drain With Ductile Iron Dome, 5-1/2 in H, Iron, Epoxy-Coated