Zurn Z100-DX Roof Drain Low-Silhouette Dome

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



Pipe Size
(in.) (A)
Weight (lbs.)
Dome Open
Area (sq. in.)
2 - 4 49 103
5, 6 50 103
8 51 103

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



Outlet Types

Outlet Type Available Pipe
Sizes (in.)
Body Height
Dimension (E)
Inside Caulk (IC) 3, 4, 6 5 1/4 in.
Threaded (IP) 3, 4 5 1/4 in.
No-Hub (NH) 3, 4, 6, 8 5 1/4 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 (-AR) Stainless Steel Mesh Screen Over Dome (-SS)
3/4 - 4 in. Adjustable Water Level Regulator (ZC only) (-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)
Static Extension (1 - 4-in.; specify height) (-E) 4-in. Internal Water Dam (-W4)
Adjustable Extension Assembly (1 3/4 - 3 1/2 in.) (-EA) Vertical Expansion Joint (-XJ)
Flush Grate (Replaces Dome Strainer) (-FG) Stainless Steel Perforated Gravel Guard (-84)
Galvanized Cast Iron (-G) Stainless Steel Perforated Extension (-85)
Galvanized Cast Iron Dome (ZC only) (-GD) 2-in. High External Water Dam (-89)