The Watts RD-100-F is a flanged primary roof drain designed for reliable drainage on commercial and industrial roof systems. Its epoxy-coated cast iron body provides long-term durability, while the flashing flange and clamping ring help ensure a secure, watertight connection to the roof membrane. A self-locking polyethylene dome (standard) protects the drain from debris, and the unit is available in multiple outlet sizes for installation flexibility.

Key Features

• Flanged design with flashing clamp for secure roof-membrane integration

• Epoxy-coated cast iron body for durability and corrosion resistance

• Self-locking polyethylene dome for debris protection

• Standard no-hub outlet, with multiple outlet sizes available

• Compatible with optional sump receivers and accessories