The Watts Drainage RD-100 large area roof drain. It includes:

• Pipe Sizing: 2 - 6 inch. 
• 137 sq. in. free area.
• Epoxy coated cast iron body.
• Flashing clamp.
• Integral gravel stop.
• Self-locking polyethylene dome.
• Outlet Options : No Hub (standard), Push On (P), Threaded Outlet (T) and Inside Caulk (-X). 

Optional Body Material:

• PVC body with socket outlet (-60)
• ABS body with socket outlet (-61)

Engineering Specifications:

DOWNLOAD PRODUCT SPECIFICATION SHEET

• RD-100 
• RD-100-CP Promenade Top
• RD-100-CP-85 IRMA Promenade Top
• RD-100-F Adjustable Extension Flange
• RD-100-85 IRMA
• RD-100-R Overflow Drain 2-in. External Dam
• RD-100-SO Side Outlet
• RD-100-W Overflow 4-in. Internal Dam