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RD-300-CP15 Watts

Roof Drain with 15 x 15 in. Promenade Top

Series RD-300-CP15 epoxy coated cast iron roof drain with flashing clamp with integral gravel stop, 15-5/8 x 15-5/8 in. (397 x 397mm) square epoxy coated ductile iron heel proof promenade top, and no hub (standard) outlet.


  • Engineered with cast iron for long life and durability
  • Ductile iron heel proof promenade top for impact strength
  • No hub (standard) outlet for easy installation
  • Flashing clamps with integral gravel guards help ensure reliable drainage

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific RD-300-CP15