Series RD-300-R epoxy coated cast iron overflow roof drain with flashing clamp with integral 2 inch (51mm) high external water dam, self-locking polyethylene dome (standard), and no hub (standard) outlet.
Body: Cast iron
Flange: N/A
Outlet length: No hub
Clamping Ring: 2" external overflow
Strainer: 12" Plastic
Free area: 137 square inches
Deck opening: 14-1/2", With sump receiver: 18"
Type: New Installation/Direct Connect
Material: Cast Iron
I really like the products we purchase from Marathon. They are always helpful and much nicer to deal with than my previous manufactures.
— Bob, Commercial Coordinator, ABC Supply Company, Austin, Texas