Keywords: 10 gauge steel, 2 inch, 3 in no hub outlet, 4 in no hub connection, 4 inch standpipe, 6 inch, adjustable extensions, cast, cast iron, cast iron self-locking dome, cast nickel bronze, combination roof drain/overflow, countersunk mounting holes, deck flange, downspout nozzle, flashing clamp, high volume, integral gravel guard, internal water dam, iron, no hub, overflow drain, overflow standpipe, pressure reducing valve, roof drain body, temperature gauge, zinc plated,