--- title: Zurn Z125-DR Roof Drains - Top-Set Drain Riser description: Find a product diagram and engineering specifications for the Zurn 125-DR 8-3/8 in. roof drain with Top Set drain riser. --- Search our inventory of drains, drain parts, safety and roofing equipment, and accessories. [Shop Now](https://hy-techroof.com/products/). - [ About ](https://www.hy-techroof.com/about-hy-tech/) - [ Contact ](https://www.hy-techroof.com/contact-hy-tech/) - - [![Hy-Tech Roof Products](https://resources.hy-techroof.com/hubfs/Logos/Hy-Tech%20Logo_rgb_maroon_480.png) ](https://www.hy-techroof.com) [**](https://www.hy-techroof.com/login.php) [**](https://www.hy-techroof.com/cart.php) ** ** [![Hy-Tech Roof Products](https://resources.hy-techroof.com/hubfs/Logos/Hy-Tech%20Logo_rgb_maroon_480.png) ](https://www.hy-techroof.com) [**](https://www.hy-techroof.com/cart.php) - - # Zurn Z125-DR Roof Drains - Top-Set Drain Riser *Dimensional data is subject to manufacturing tolerances and change without notice.* *![z125-dr-roof-drain](https://resources.hy-techroof.com/hs-fs/hubfs/z125-dr-roof-drain.webp?width=340&name=z125-dr-roof-drain.webp)* | **Pipe Size (in.) (A)** | **K** | **Approx.** **Weight (lbs**.) | **Dome Open** **Area (sq. in.)** | | | --- | --- | --- | --- | --- | | **Min.** | **Max.** | | | | | 2 - 4 | 3-5/8 | 7-1/4 | 51 | 43 |   **ENGINEERING SPECS: **Zurn Z125-DR 8-3/8in. roof drain includes a dura-coated cast iron (DCCI) body with combination membrane flashing clamp / gravel guard, adapter plate, Top-Set® drain riser, drain riser flange, Top-Set® deck plate, and low-silhouette cast iron dome.   [![image of blue zurn roof drain with text "zurn roof drains & replacement parts find and buy online"](https://no-cache.hubspot.com/cta/default/10783/dd59a7a6-a93c-475e-a021-79d328357d56.png)](https://cta-redirect.hubspot.com/cta/redirect/10783/dd59a7a6-a93c-475e-a021-79d328357d56) ## Outlet Types | **Outlet Type** | **Available Pipe Sizes (in.)** | **Body Height Dimension (in.) (E)** | | --- | --- | --- | | Inside Caulk (IC) | 2 - 4 | 3-7/8 | | Threaded (IP) | 2 | 2-7/16 | | Threaded (IP) | 3 | 2-3/4 | | Threaded (IP) | 4 | 3 | | No-Hub (NH) | 2 - 4 | 4 | | Neo-Loc (NL) | 2 - 4 | 3-13/16 |   ## Dome Options - Dome* (4-1/4 in. height) with DCCI Body (Z) - Aluminum Dome (4-1/4 in. height) with DCCI Body (ZA) - Plain Bronze Dome (3-1/4 in. height) with DCCI Body (ZRB) **Regularly furnished unless otherwise specified* ## Available Accessories - Acid Resistant Epoxy Coated Finish (-AR) - Neo-Loc Test Cap Gasket (2 - 4-in. Neo-Loc Bottom Outlet Only) (-TC) - Bronze Mesh Screen Over Dome (-BS) - Vandal-Proof Secured Top (-VP) - 2-in. Static Extension (specify height) (-E) - Vertical Expansion Joint (-XJ) - Flush Grate (Replaces dome strainer) (-FG) - Stainless Steel Perforated Gravel Guard (-84) - Galvanized Cast Iron (-G) - Stainless Steel Perforated Extension (-85) - Secondary Clamping Collar (-SC) - 2-in. High External Water Dam (-89) - Stainless Mesh Screen Over Dome (-SS) - [Drains](https://www.hy-techroof.com/products/drains/) - [Zurn](https://www.hy-techroof.com/manufacturers/zurn/) - [Smith](https://www.hy-techroof.com/manufacturers/j-r-smith/) - [Josam](https://www.hy-techroof.com/manufacturers/josam/) - [Wade](https://www.hy-techroof.com/manufacturers/wade/) - [Marathon](https://www.hy-techroof.com/manufacturers/marathon/) - [Olympic](https://www.hy-techroof.com/manufacturers/olympic/) - [Equipment](https://www.hy-techroof.com/products/equipment) - [Garlock](https://www.hy-techroof.com/manufacturers/garlock/) - [Leister](https://www.hy-techroof.com/manufacturers/leister/) - [All Seasons / Grizzly](https://www.hy-techroof.com/manufacturers/all-seasons-equipment/) - [Hennes-Johnson](https://www.hy-techroof.com/manufacturers/hennes-johnson/) - [Gator](https://www.hy-techroof.com/manufacturers/gator-roofing-equipment/) - [Roofmaster](https://www.hy-techroof.com/manufacturers/roofmaster-products-company/) - [Safety](https://www.hy-techroof.com/products/safety) - [Leading Edge](https://www.hy-techroof.com/manufacturers/leading-edge-safety/) - [Tie Down Manufacturing Ingenuity](https://www.hy-techroof.com/manufacturers/tie-down-manufacturing-ingenuity/) - [Malta Dynamics](https://www.hy-techroof.com/manufacturers/malta-dynamics/) - [Resources](https://resources.hy-techroof.com) - [Account](https://www.hy-techroof.com/login.php) - [The Drain Wizard](https://resources.hy-techroof.com/ask-the-drain-wizard) - [FAQ](https://resources.hy-techroof.com/faq) - [Blog](https://resources.hy-techroof.com/blog) - [Roof Drain Specs](https://resources.hy-techroof.com/roof-drain-specs-and-diagrams) - [Video Library](https://resources.hy-techroof.com/video-library) - [About](https://www.hy-techroof.com/about-hy-tech/) - [Contact Us](https://www.hy-techroof.com/contact-hy-tech/) - [About Hy-Tech](https://www.hy-techroof.com/about-hy-tech/) - [Service and Repairs](https://www.hy-techroof.com/service-and-repairs/) [800-635-0384](tel:8006350384) **Hy-Tech Products **10035 Broadview Road, Broadview Heights, OH 44147 [info@hy-techroof.com](mailto:info@hy-techroof.com) [800-635-0384](tel:8006350384) **Hy-Tech Products **10035 Broadview Road, Broadview Heights, OH 44147 [info@hy-techroof.com](mailto:info@hy-techroof.com) © 2026 Hy-Tech Products, Inc. All rights reserved. [ Terms of Use ](https://resources.hy-techroof.com/terms) - -