Dimensional data is subject to manufacturing tolerances and change without notice.
Specifications: The Watts Drainage RD-100-SO is an epoxy-coated, cast-iron side outlet roof drain with flashing clamp. It includes an integral gravel stop; self-locking polyethylene dome; and no hub (standard) outlet.
| Pipe Size (in.) | A | B | C |
| 2" (-2) | 4-5/8 in. | 8-7/8 in. | 15-15/16 in. |
| 3" (-3) | 4-3/32 in. | 7-3/8 in. | 14-7/16 in. |
| 4" (-4) | 3-5/8 in. | 5-5/8 in. | 12-11/16 in. |
Outlet Types
| No-Hub Outlet (-NH) |
| Push On (-P) |
| Threaded Outlet (-T) |
| Inside Caulk (-X) |
Accessories
| Galvanized Body and Flashing Clamp (-13) | Ductile Iron Low Dome (4-in.) (-K40) |
| Accutrol Flow Restrictor (-A) | Aluminum Dome (-K80) |
| Sump Receiver (-B) | Rough Bronze Dome (-K81) |
| Underdeck Clamp (-D) | SS Mesh Covered Dome (-K83) |
| Stainless Steel Ballast Guard (-GSS) | Vandal Proof Dome (-L) |
| Ductile Iron Dome (-K) | 2-in. External Water Dam (-R) |
| Galvanized Dome (-K13) | Adjustable Internal Water Dam (-W) |