Zurn Z100-R Roof Drain Low-Silhouette Dome

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

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Pipe Size
(in.) (A)
Weight (lbs.)
Dome Open
Area (sq. in.)
2 - 4 26 103
5, 6 27 103
8 28 103

ENGINEERING SPECS: Zurn Z100-R roof drain includes a dura-coated cast iron (DCCI) body with combination membrane flashing clamp / gravel guard, low-silhouette poly-dome strainer and roof sump receiver.



Outlet Types

Outlet Type Available Pipe
Sizes (in.)
Body Height
Dimension (E)
Inside Caulk (IC) 2 - 6, 8 5 1/4 in.
Threaded (IP) 2 - 6, 8 3 3/4 in.
No-Hub (NH) 2 - 6, 8 5 1/4 in.
Neo-Loc (NL) 2 - 4 4 5/8 in.



Dome Options

Poly-Dome* with DCCI Body (Z)
6-3/4 In. High Aluminum Dome with DCCI Body (ZA)
Cast Iron Dome with DCCI Body (ZC)
Plain Bronze Dome with DCCI Body (ZRB)

*Regularly furnished unless otherwise specified



Available Accessories

Angular Underdeck Clamp (-AC) Secondary Clamping Collar (-SC)
Acid Resistant Epoxy Coated Finish (-AR) Stainless Steel Mesh Screen Over Dome (-SS)
3/4 - 4 in. Adjustable Water Level Regulator (-AW) Vandal-Proof Secured Top (-VP)
Bronze Mesh Screen Over Dome (-BS) 2-in. Internal Water Dam (-W2)
Underdeck Clamp (-C) 3-in. Internal Water Dam (-W3)
Dex-o-Tex Flange (-DX) 4-in. Internal Water Dam (-W4)
Static Extension (1 - 4-in.; specify height) (-E) Vertical Expansion Joint (See Z-190) (-XJ)
Adjustable Extension Assembly (1 3/4 - 3 1/2 in.) (-EA) 6 3/4 in. High Aluminum Dome (148 sq. in. open area) (-6)
Static Extension With Secondary Clamp (-ES) Stainless Steel Perforated Gravel Guard (-84)
Flush Grate (-FG) Stainless Steel Perforated Extension (-85)
 Galvanized Cast Iron (-G) 2-in. High External Water Dam (-89)
 Galvanized Cast Iron Dome (-GD) 90° Threaded Side Outlet Body (-90)