Watts - RD-100-W - Overflow Roof Drain with 4 in. Internal Water Dam Window Well Extension Adjustable Head & Secure StrainerEquipped

Adjustable Head & Secure StrainerEquipped with a polished nickel-bronze adjustable head and a 4″ round secured strainer (standard)

The suspended solids are permitted to stettle out of the slowed flow and are quickly captureed by the Storm Drain Filter Insert befor entering the inlet

it performs well in non-traffic areas such as kitchens

Multiple outlet options and accessory choices make it adaptable for unique roof configurations

Stable Design – Features an 8″ internal width with galvanized steel rails for added structural strength under heavy loads

Watts - RD-100-W - Overflow Roof Drain with 4 in. Internal Water Dam Window Well Extension Adjustable Head & Secure StrainerEquippedThe 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