The Watts RD-700 is a super-large-area roof drain designed for high-capacity primary drainage on expansive commercial and industrial roof systems. Its epoxy-coated cast iron body delivers long-term corrosion resistance, while the flashing clamp and integral gravel stop help create a secure, watertight membrane connection. A large, self-locking polyethylene dome provides dependable debris protection, and the unit comes equipped with a standard no-hub outlet for straightforward installation.
Key Features
-
Epoxy-coated cast iron body for strength and corrosion resistance
-
Flashing clamp with integral gravel stop for secure membrane integration
-
Large self-locking polyethylene dome for reliable debris protection
-
Standard no-hub outlet for easy plumbing connection
-
Ideal for super-large-area primary roof drainage applications
