4160 series of general purpose roof drains consist of a deep sump cast iron body with bottom outlet, a removable cast iron or nickel bronze dome strainer, and a membrane flashing clamp with integral gravel stop.
Used in flat roofs of any type and any size of construction. The Flashing clamp holds flashing and roofing materials securely to the drain body.The dome provides sufficient free area for quick drainage of rain water and protects the drain sump and connected piping from the intrusion of debris