Watts RD-100-W: Overflow Roof Drain with 4-in. Internal Water Dam Specifications
Dimensional data is subject to manufacturing tolerances and change without notice.
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| Pipe Size (in.) |
| 2" (-2) |
| 3" (-3) |
| 4" (-4) |
| 5" (-5) |
| 6" (-6) |
Specifications: The Watts Drainage RD-100-W is an epoxy-coated, cast-iron overflow roof drain with flashing clamp. It includes an integral 4-in. high internal standpipe; self-locking polyethylene dome; and no hub (standard) outlet. 137 sq. in. free area.
Outlet Types
| No-Hub Outlet (-NH) |
| Push On (-P) |
| Threaded Outlet (-T) |
| Inside Caulk (-X) |
Optional Body Material
| PVC Body w/ Socket Outlet (-60) |
| ABS Body w/ Socket Outlet (-61) |
Accessories
| Galvanized Body and Flashing Clamp (-13) | Aluminum Dome (-K80) |
| Sump Receiver (-B) | Rough Bronze Dome (-K81) |
| Underdeck Clamp (-D) | Stainless Steel Mesh Covered Dome (-K83) |
| Adjustable Extension Flange (-F) | Vandal Proof Dome (-L) |
| Stainless Steel Ballast Guard (-GSS) | 2-in. External Water Dam (-R) |
| Ductile Iron Dome (-K) | Side Outlet (2, 3, 4-in. only) (-SO) |
| Galvanized Dome (-K13) | Buy American Compliant (-US) |
| Ductile Iron Low Dome (4-in. high) (-K40) | Adjustable Internal Water Dam (-W) |
