Watts RD-300-R Roof Drain With 2" External Water Dam Specs

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

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.

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 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)