The Watts RD-300-W is a medium-area roof drain designed for primary drainage where a wide flange is required for secure membrane attachment. Its epoxy-coated cast iron body provides long-term durability, while the wide flange and flashing clamp help create a robust, watertight connection to the roofing system. A self-locking polyethylene dome protects the drain from debris, and the unit comes equipped with a standard no-hub outlet for straightforward installation.
Key Features
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Wide flange with flashing clamp for strong roof-membrane integration
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Epoxy-coated cast iron body for corrosion resistance and durability
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Self-locking polyethylene dome for debris protection
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Standard no-hub outlet for easy plumbing connection
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Suitable for medium-area primary roof drainage applications
