Tech Specialties™ Frank Pattern™ Combination Roof and Overflow Drain, 3 in Outlet, No-Hub Connection, Cast Iron Drain, 18-7/8 in L x 10-5/8 in W Dimensions
For use on flat roofs as a primary drain and an overflow connection to prevent overflow conditionsCast iron membrane clamps to both roof and overflow drainsRemovable twist-off strainer domesLeaf guard ring flashingStainless steel fasteners