Watts - GRD-670 - Green Roof Drain w/Auxiliary Inlet Sheet Drain an 8″ diameter adjustable round

an 8″ diameter adjustable round top with a heel-proof ductile-iron grate

concrete & paver patios

ensuring long life even under frequent use in wet environments

The Spee-D Channel Drain elbow is made of polyvinyl chloride (PVC) and the slotted grate is made of high-density polyethylene (HDPE)

Watts - GRD-670 - Green Roof Drain w/Auxiliary Inlet Sheet Drain an 8″ diameter adjustable roundThe Watts GRD 670 is a green roof planter drain designed for primary drainage in large planter beds and vegetated roof sections. Its epoxy coated cast iron body provides strong corrosion resistance, while the perforated stainless steel ballast guard helps prevent soil and debris from obstructing flow. A secured solid cover allows for surface level maintenance access, and the unit includes a standard no hub outlet for straightforward installation. Key