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RD-300-W

Overflow Roof Drain with 4 in. Internal Water Dam

  • Flashing clamps with integral internal water dam and standpipe help ensure reliable drainage and overflow
  • Engineered with cast iron for long life and durability
  • Self-locking polyethylene dome (standard) and no hub (standard) outlet simplify installation and maintenance

Select a Model

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

Approval Information

For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA