GRD-640 - Watts

GRD-640

Green Roof Metered Overflow Drain

Series 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.

Features

Specified for seepage or restricted drainage in green roof systems
Non-corrosive perforated stainless steel ballast guard
Surface maintenance access through removable cover
No hub or push-on connection

Literature

- Brochure - Specification Drainage Products
- Price List - Watts Specification Drainage Products

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Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:

ASSE	CSA	FM Approvals	NSF
UL	ULC	USC	WQA