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Figure Number: 1025
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1025General Purpose Roof Drains with Adjustable Extension

This general purpose drain is adjustable on-site to accommodate roofs of any construction between 1-1/4" (32) and 4" (100) thick with up to 2-3/4" (70) of insulation. The combination flange clamp and gravel stop of this 15-1/4" (390) diam. adjustable roof drain spins around a threaded extension sleeve to conform to varying roof thicknesses. The drain body and flange assembly are made of Duco coated cast iron. It is protected by a polyethylene dome strainer.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Learn More about this warning
Shows specifications for standard configuration. Configuration options may change specifications.
  • Variations
    L-Shaped Underdeck Clamp -CL, Secondary Flashing Clamp -C2, Sump Receiver -R, Underdeck Clamp -C, Vandal Proof - Dome - U, (2) 3/8” (10) Tappings -TAP
  • Optional Materials
    Aluminum Dome -AD, Cast Iron Dome -CID, Galvanized Cast Iron -G - Body & Collar, Galvanized Cast Iron Dome -CIDG, Rough Bronze Dome -RBD
  • Product Type
    Roof Drain
SubmittalSubmittal 1025 Roof Drain (pdf)
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Technical Drawings
1025 Roof Drain (dwg)General Purpose Roof Drain with Adjustable Extension [1025S | Spigot Side Outlet; 1025T | Threaded Side Outlet; 1025Y | No-Hub Side Outlet]DWG91 KB
Literature / Videos
MGI Corporate Brochure (pdf)Who we are, Our History, Morris Group International TodayPDF8 MB
MGI Brands Flyer (pdf)MGI Brands Flyer (pdf)PDF712 KB
Specifications for Roof DrainsSpecifications for Roof DrainsDOC230 KB
Technical Data for Roof DrainsTechnical Data for Roof DrainsPDF2 MB
Parts Order Guide for Roof DrainsParts Order Guide for Roof DrainsPDF5 MB
Order Guidelines for Roof DrainsOrder Guidelines for Roof DrainsPDF120 KB
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General Purpose Roof Drain with Adjustable Extension
1025S  |  Spigot Side Outlet;
1025T  |  Threaded Side Outlet
1025Y  |  No-Hub Side Outlet