The Watts GRD-680 is a green-roof planter drain designed to provide dependable primary drainage in large planter areas on vegetated roof systems. Its epoxy-coated cast iron body delivers long-term corrosion resistance, while the perforated stainless-steel ballast guard helps prevent soil and debris from entering the drain. A secured solid cover allows surface-level maintenance access, and the unit comes equipped with a standard no-hub outlet for easy installation.

Key Features

• Intended for primary drainage in green-roof planter applications

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

• Perforated stainless-steel ballast guard to keep out debris

• Secured solid cover for convenient maintenance access

• Supplied with a standard no-hub outlet