Large Sump Roof Drain
FD-4080 series of dome type large sump roof drains consist of cast iron body with vertical
outlet, a membrane clamp with integral gravel stop.
Used in flat roofs of any type and any size of construction. The dome provides maximum free area for quick drainage of rain water through the large sump body and protects the drain and connected piping from the intrusion of debris. The Flashing (V-Shape) clamp holds flashing and roofing materials to the drain body without puncturing.