Watts Drainage GRD-640 epoxy coated cast iron green roof drain overflow drain with flashing clamp, ABS standpipe with 5/8 in. (16mm) orifice, perforated stainless steel gravel guard with secured solid cover, and no hub (standard) outlet.
| Watts | |
|---|---|
| Product Category | Drains and Drain Systems |
| Product Number | GRD-640 |
| Product Name | Green Roof Metered Overflow Drain |
| Drain Type | Roof |
