Dimensional data is subject to manufacturing tolerances and change without notice.
Specifications: Zurn Z121 12-in. diameter low-profile roof drain. Dura-coated cast iron (DCCI) body with combination membrane flashing clamp / gravel guard, and low-silhouette cast iron dome.
| Pipe Size (in.) |
Approx Weight (lbs) |
Dome Open Area (sq in.) |
| 2, 3, 4, 5, 6 |
22 |
78 |
Outlet Types
- Inside Caulk (IC)
- Threaded (IP)
- No-Hub (NH)
Dome Options
- Dome* with DCCI Body (Z)
- Aluminum Dome with DCCI Body (ZA)
- Plain Bronze Dome with DCCI Body (ZRB)
*Regularly furnished unless otherwise specified.
Accessories
- Acid Resistant Epoxy Coated (AR)
- Secondary Clamp Collar (SC)
- Bronze Mesh Screen Over Dome (BS)
- Stainless Steel Mesh Screen Over Dome (SS)
- Underdeck Clamp (C)
- Neo-Loc Test Cap Gasket (2- to 4-in. Neo-Loc Outlet Only) (TC)
- Top-Set® Roof Deck Plate (Replaces both the Underdeck Clamp and Roof Sump Receiver) (DP)
- Vandal-Proof Secured Top (VP)
- Top-Set® Deck Riser (Adjustment from 3-5/8 to 7-1/4) (DR)
- Vertical Expansion Joint (See Z190) (XJ)
- 2-in High Static Extension 1- to 4-in. (specify ht) (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)
- 90° Threaded Side Outlet Body (2- to 4-in.) (Previously Z124) (90)
- Roof Sump Receiver (R)
