Watts - RD-100-W - Overflow Roof Drain with 4 in. Internal Water Dam ZC100F-8NH and other finished wet zones

and other finished wet zones

ZB400C-3IC

align outlet with the drilled out area

the outer layers contain UV inhibitors and thermal stabilizers

Watts - RD-100-W - Overflow Roof Drain with 4 in. Internal Water Dam ZC100F-8NH and other finished wet zonesThe Watts RD 100 W is a primary roof drain designed for commercial roofing systems that require secure membrane integration and reliable water removal. Its epoxy coated cast iron body provides long term durability, while the wide flange and flashing clamp help create a watertight seal. A self locking polyethylene dome protects the drain from debris, and the no hub outlet allows straightforward connection to the drainage system. Key Features Wide