Dimensional data is subject to manufacturing tolerances and change without notice.
Specifications: Zurn Z121-90 12-in. lateral roof drain includes a dura-coated cast iron (DCCI) body with combination membrane flashing clamp / gravel guard, and a low-silhouette cast iron dome.
| Pipe Size (in.) |
H |
M |
Approx Weight (lbs) |
Dome Open Area (sq in.) |
| 2 |
6 |
4-1/8 |
37 |
78 |
| 3 |
6 |
3-5/8 |
35 |
78 |
| 4 |
6 |
3-1/8 |
36 |
78 |
Outlet Types
Dome Options
- Dome* (4-1/4 in. height) with DCCI Body (Z)
- Aluminum Dome (6-9/16 in. height) with DCCI Body (ZA)
- Plain Bronze Dome (3-7/8 in. height) with DCCI Body (ZRB)
*Regularly furnished unless otherwise specified.
Accessories
- Acid Resistant Epoxy Coated (-AR)
- Roof Sump Receiver (-R)
- Bronze Mesh Screen Over Dome (-BS)
- Secondary Clamp Collar (-SC)
- Underdeck Clamp (-C)
- Stainless Mesh Screen Over Dome (-SS)
- Top-Set® Roof Deck Plate (-DP)
- Vandal-Proof Secured Top (-VP)
- 2 in. High Static Extension (specify height) (-E)
- Stainless Steel Perforated Gravel Guard (-84)
- Top-Set® Adjustable Extension Assembly (-EB)
- Stainless Steel Perforated Extension (-85)
- Flush Grate (-FG)
- 2-in. High External Water Dam (-89)
- Galvanized Cast Iron (-G)
