Dimensional data is subject to manufacturing tolerances and change without notice.
Specifications: Watts RD-300-W 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.
Pipe Size (in.)
- 2 (no hub only)
- 3
- 4
- 5 (no hub only)
- 6
- 8
- 10 (no hub only)
Outlet Types
- No-Hub Outlet (-NH)
- Push On (-P)
- Inside Caulk (-X)
Accessories
- Galvanized Body and Flashing Clamp (-13)
- Ductile Iron Low Dome (4-in.) (-K40)
- Sump Receiver (-B)
- Aluminum Dome (-K80)
- Underdeck Clamp (-D)
- Rough Bronze Dome (-K81)
- Adjustable Extension Flange (-F)
- Stainless Steel Mesh Covered Dome (-K83)
- Stainless Steel Ballast Guard (-GSS)
- Vandal Proof Dome (-L)
- Ductile Iron Dome (-K)
- Buy American Compliant (-US)
- Galvanized Dome (-K13)