Dimensional data is subject to manufacturing tolerances and change without notice.
Specifications: Zurn Z121-EB 12-in. 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.
| Pipe Size (in.) |
Approx Weight (lbs) |
Dome Open Area (sq in.) |
| 2, 3, 4, 6 |
31 |
78 |
Outlet Types
- Inside Caulk (IC)
- Threaded (IP)
- No-Hub (NH)
- Neo-Loc (NL)
Dome Options
- Poly Dome* (4-1/4 in. height) with DCCI Body (Z)
- Aluminum Dome (6-9/16 in. height) with DCCI Body (ZA)
- Low Silhouette Cast Iron Dome (4-1/4 in. height) with DCCI Body (ZC)
- Plain Bronze Dome (3-7/8 in. height) with DCCI Body (ZRB)
*Regularly furnished unless otherwise specified.
Accessories
- Acid Resistant Epoxy Coated Finish (-AR)
- Neo-Loc Test Cap Gasket (2 - 4 in. NL Bottom Outlet Only) (-TC)
- Bronze Mesh Screen Over Dome (-BS)
- Vandal-Proof Secured Top (-VP)
Deep Sump Body (-DB)
- Vertical Expansion Joint (-XJ)
- Static Extension (1 - 4-in.; specify height) (-E)
- Stainless Steel Perforated Gravel Guard (-84)
- Flush Grate (Replaces dome strainer) (-FG)
- Stainless Steel Perforated Extension (-85)
Galvanized Cast Iron (-G)
- 2-in. High External Water Dam (-89)
- Secondary Clamping Collar (-SC)
- 90° Threaded Side Outlet Body (2 - 4-in. only) (-90)
- Stainless Steel Mesh Screen Over Dome (-SS)
