Josam 22500 15-in. Combination Drain and Overflow

Designed for large roof areas, see Josam 22500 15-in. Combination Roof Drain and Overflow product details, available options and outlet types.

Josam 22500 15-in. coated, cast iron combination roof drain & overflow drain is designed for large roof areas. It includes:

A one-piece double drain receiver that positions the roof drain and overflow drain side by side, requiring only a single roof penetration.
One WEJLOC non-puncturing clamp ring with integral gravel stop to ensure a watertight seal.
Two large polypropylene locking domes.
Dual deckplate.

Josam 22500 Series

-AE	LEVELEZE Adjustable Extension	-22	Cast Iron Dome/Grate
-IRMA	Perforated Stainless Steel Extension	-23	Rough Bronze Dome
-POLY	Poly Dome	-26	Aluminum Dome
-RCSD	Recessed Drain Receiver	-33	S.S. Mesh Screen Covered Dome
-VP	Vandal-Proof	-4	Secondary Flashing Clamp (use with -AE only)
-1	Deck Clamp Assembly
-10	Fixed Extension Collar, CI (spec. ht.)	-T	Threaded Outlet
-10-20	Fixed Extension Collar, Galvanized (spec. hgt.)	-X	Inside Caulk Outlet
-20	Galvanized Cast Iron Parts	-Y	Hub Outlet w/ Gasket, 2-in. - 4-in.
-21	Galvanized Cast Iron Dome Only	-Z	No-Hub Spigot Outlet