Watts RD-300-R Roof Drain with 2-in. External Water Dam Specifications

Dimensional data is subject to manufacturing tolerances and change without notice. 

 

Pipe Size (in.)
2 (no hub only)
3
4
5 (no hub only)
6
8
10 (no hub only)

Specifications: Watts Drainage RD-300-R epoxy-coated cast iron overflow roof drain with flashing clamp. It includes an integral 2-in. high external water dam, self-locking polyethylene dome, and no hub (standard) outlet. 137 sq. in. of free area.

 

 

 

 

Outlet Types

No-Hub Outlet (-NH)
Push On (-P)
Inside Caulk (-X)

 

 

 

 

 

 

   

 

Accessories

Galvanized Body and Clamp (-13) Ductile Iron Low Dome (-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)