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Overflow Roof Drain with 4 in. Internal Water Dam

Series RD-100-W epoxy coated cast iron overflow roof drain with flashing clamp with integral 4 in.(102mm) high internal standpipe, self-locking polyethylene dome (standard), and no hub (standard) outlet.


  • Self-locking polyethylene dome (standard) and no hub (standard) outlet simplify installation and maintenance
  • Engineered with cast iron for long life and durability
  • Flashing clamp and integral high internal standpipe ensure reliable drainage
Series Specifications
Application Large Area Roof Drains

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Approval Information

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