The Watts RD-200-R is a small-area overflow roof drain designed to provide secondary (emergency) drainage when primary roof drains are exceeded or obstructed. Its epoxy-coated cast iron body offers long-term durability, while the flashing clamp helps ensure a secure, watertight connection to the roof membrane. A raised external water dam provides controlled overflow height, and the self-locking polyethylene dome protects the drain from debris. The unit is supplied with a standard no-hub outlet for straightforward installation.

Key Features

• Designed for overflow drainage in small roof areas

• Raised external water dam to establish controlled overflow level

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

• Self-locking polyethylene dome for debris protection

• Standard no-hub outlet for easy connection