Josam 21500-19 Large Sump With Perforated Stainless Steel Gravel Guard

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

Specifications: The Josam 21500-19 Series is a coated cast-iron roof drain with a large polypropylene locking dome. Includes a WEJLOC® non-puncturing clamp ring with integral gravel stop, stainless steel perforated gravel guard, and large sump with a wide roof flange and bottom outlet.

Application: Used on flat roofs where gravel ballast is employed to anchor a membrane. A large slotted dome ensures maximum free area for quick rainwater drainage while protecting the drain sump and connected piping from debris. Its WEJLOC® compression-flashing clamp holds the membrane or flashing securely to the drain body. A perforated stainless steel gravelguard restrains gravel ballast from entering the dome and drain sump. 

Type No. Pipe Size (in.) Weight (lbs.)
21502-19 2 36
21503-19 3 37
21504-19 4 38
21505-19 5 39
21506-19 6 40
21508-19 8 42
21509-19-Z 10
(no-hub only)
43

 

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Outlet Types

  • Threaded Outlet (-T)
  • Inside Caulk Outlet (-X)
  • Hub Outlet w/ Gasket (2-4 in.) (-Y)
  • No-Hub Spigot Outlet (-Z)

Options

  • Secondary Flashing Clamp (use with -AE only) (-4)