Dimensional data is subject to manufacturing tolerances and change without notice.
K = min. 2-3/4 in. | max. 6-7/8 in.
Pipe Size (in.) |
Approx. Weight (lbs.) |
Dome Open Area (sq. in.) |
2 - 4, 6 | 59 | 78 |
ENGINEERING SPECS: Zurn Z121-DR 12-in. roof drain includes a dura-coated cast iron (DCCI) body with combination membrane flashing clamp / gravel guard, adapter ring, Top-Set® drain riser, drain riser flange, Top-Set® deck plate, and low-silhouette poly dome.
Outlet Type | Available Pipe Sizes (in.) |
Body Height Dimension (in.) (E) |
Inside Caulk (IC) | 2 - 4, 6 | 5-1/4 |
Threaded (IP) | 2-4, 6 | 3-3/4 |
No-Hub (NH) | 2 - 4, 6 | 5-1/4 |
Neo-Loc (NL) | 2 - 4 | 4-5/8 |
*Regularly furnished unless otherwise specified
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