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Figure Number: 1901
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1901Green Roof Planter Drain & Overflow Standpipe

Engineered for planting areas of Intensive Green Roof Systems, this 15-1/4" (387.35 mm) diameter, cast iron drain protects roofs and maintains optimal growing conditions for plants. It is protected against clogging by a 10" (254 mm) perforated, stainless steel gravel stop. An 8-1/2" (215.9 mm) metering-capable PVC standpipe ensures that water level is maintained. This drain is fitted with a combination gravel stop and flashing clamp for leak free installation in roof decking. The P.V.C. Standpipe features a orifice

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
    Adjustable Extension (Specify Fig. 1045), Expansion Joint (Specify Fig. 1710), Extension -E - (Specify Height), L-Shaped Underdeck Clamp -CL, L Speedi-Set® Service Weight - 02(50), 03(75), 04"(100) Sizes Only, LXH Speedi-Set® Extra Heavy., Sump Receiver -R, Underdeck Clamp -C, Roof Deck Plate -RDP, Vandal Proof Cover -U
  • Optional Materials
    Bronze Standpipe -BZS, Cast Iron Standpipe -CIS, Galvanized Cast Iron -G - Body & Collar
  • Product Type
    Roof Drain
SubmittalSubmittal 1901 Roof Drain (pdf)
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Technical Drawings
1901 Roof Drain (dwg)Green Roof Planter Drain Standpipe Type with 5/8" Orifice [1901C | Caulk Bottom Outlet 1901Y | No-Hub Bottom Outlet]DWG80 KB
1901 Roof Drain (rfa)Green Roof Planter Drain Standpipe Type with 5/8" Orifice [1901C | Caulk Bottom Outlet 1901Y | No-Hub Bottom Outlet]RFA556 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
Green Roof and Cool Roof Drains Brochure (pdf)Brochure Green Roof and Cool Roof DrainsPDF2 MB
1901 Roof Drain (hi res jpg)Green Roof Planter Drain Standpipe Type with 5/8" Orifice [1901C | Caulk Bottom Outlet 1901Y | No-Hub Bottom Outlet]JPG127 KB
Technical Data for Roof DrainsTechnical Data for Roof DrainsPDF2 MB
Order Guidelines for Roof DrainsOrder Guidelines for Roof DrainsPDF120 KB
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1901C | Caulk Bottom Outlet
1901T | Threaded Bottom Outlet
1901Y | No-Hub Bottom Outlet

Available in the following pipe sizes
02 (50), 03 (75), 04 (100) Pipe Sizes
Standpipe 4" (100) Diameter with 5/8 (16) Orifice

05 (125), 06 (150) Pipe Size
Standpipe 6" (150  Diameter with 1 (25) Orifice

08 (200) Pipe Size
Standpipe 8" (200) Diameter with 1 (25) Orifice