Products / MIFAB R1100-90 Small Sump Roof Drain with Side Outlet

The R1100-90 series is a lacquered cast iron roof drain with a threaded side outlet, an anchor flange, a cast iron waterproofing membrane clamp ring with an integral gravel stop, and a self-locking polyethylene dome strainer with 43 sq. in. of free area, per the product page's specification text. It is listed in MIFAB's current specification drainage catalog (MPB-2025-04-USA).