User Manual

ES-WD-RD-500 USA 0524 RD-500
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SPECIFICATION: Watts Drainage RD-500 epoxy coated cast iron roof drain with flashing clamp with integral gravel stop,
self-locking cast iron dome, and no hub outlet.
RD-500
Super Max 12” Roof Drain
Pipe Sizing (Select One)
Suffix Description
-B
Sump Receiver
-D
Underdeck Clamp
-W
Internal Water Dam
-L
Vandal Proof Dome
Suffix Description
Options (Select One or More)
-R
2" External Water Dam
12"(305) Pipe Size 12
-F
Adjustable Extension Flange
275
Deck Opening 18-1/2" (470)"
with Sump Receiver 22-3/8 (568)
Free Area
Sq. In.
19" (483)
15-1/2" (394) DIA
5 " (127)
7-1/2" (191)
PIPE SIZE
20" (508) DIA