Zurn Z100-EB Roof Drain | Top-Set Adjustable Extension Assembly

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



Pipe Size
Weight (lbs.)
Dome Open
Area (sq. in.)
2 - 4 36 103
5, 6 37 103
8 38 103

ENGINEERING SPECS: Zurn Z100-EB roof drain includes a dura-coated cast iron (DCCI) body with combination membrane flashing clamp / gravel guard, Top-Set adjustable extension assembly and low-silhouette poly-dome. 



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

Acid Resistant Epoxy Coated Finish (-AR) Stainless Mesh Screen Over Dome (-SS)
3/4 - 4 in. Adjustable Water Level Regulator (-AW)  Neo-Loc Test Cap Gasket (2 - 4 in.; NL bottom outlet only) (-TC)
Bronze Mesh Screen Over Dome (-BS) Vandal-Proof Secured Top (-VP)
Flush Grate (-FG) 2-in. Internal Water Dam (-W2)
Galvanized Cast Iron (-G) 3-in. Internal Water Dam (-W3)
Galvanized Cast Iron Dome (-GD) 4-in. Internal Water Dam (-W4)
6 3/4 in. High Aluminum Dome (148 sq. in. open area) (-HD) Vertical Expansion Joint (See Z190) (-XJ)
Secondary Clamping Collar (-SC) 2-in. High External Water Dam (-89)