10" or 12" RD-500 Super Flow epoxy coated cast iron roof drain with flashing clamp with integral gravel stop, self-locking ductile iron dome, and no hub outlet.
Features
Free area: 275 square inches
Deck opening: 18-1/2", With sump receiver: 22-3/8"
Marathon is always providing absolutely amazing customers service !! Wish I had more vendors like Marathon
— Holly Jagger - Assistant Branch Manager - Beacon Auburn ME