Smith® Roof Drain, Large General Purpose, Series: 1015, 4 in Outlet, No-Hub Connection, Cast Iron Drain, 15-1/4 in Dia Dimensions
C: aluminum underdeck clamp CID: cast iron dome R: sump receiver Large, low profile dome for quick drainage and production against debris Adjustable extension for different installation thicknesses Wide clamping surface to hold flashing and roofing materials Reversible collar allows for low position and high position ranges Adjustable extension for different gravel stop Duco cast iron body with adjustable extension sleeve, reversible collar, combined flashing clamp and gravel stop 102.5 sq-in free area Note: stated flow rates for roof drains are based on particular test piping configurations and dimensions Installed roof drain flow rates cannot be stated unless the attached piping configuration is known and the effects of the drainage calculated