The 4” diam. funnel provided with this drain may be secured anywhere to the drain’s 8-1/2”, or 12” diam. strainer head and is designed to catch wastewater from above (an indirect connection) while the remainder of the strainer serves the surrounding floor area. The Duco coated cast iron drain has an integral collar that can be specified for use as a flashing clamp for a watertight seal with flooring materials and is available with down or side outlet.