4 " Dia., Stainless Steel; Clamp: Cast Iron; Gasket: Neoprene, Roof Drain, Zurn, Mfr#: RD2150-SS4

Roof Drain, Grate Finish Dura Coated, Outlet Location Bottom, Dome Material Cast Iron, Drain Material Stainless Steel, Height Below Flange 12 in, Gasket Material Rubber, Height Above Flange 5 in, Includes Dome Yes, Pipe Inside Diameter 3 1/2 in, Pipe Outside Diameter 3 7/8 in, Includes Clamp Collar, Stainless Steel Hardware, Shape Square, Overall Length 18 1/2 in, Connection Type Gasket, Overall Height 17 in, Overall Width 18 1/2 in, Overall Diameter 13 5/8 in, Basin Finish Dura Coated