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
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Designed for overflow drainage in small roof areas
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Raised external water dam to establish controlled overflow level
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Epoxy-coated cast iron body for durability and corrosion resistance
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Self-locking polyethylene dome for debris protection
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Standard no-hub outlet for easy connection
