The 4" funnel provided with this drain can be secured anywhere to the drain’s strainer head to catch wastewater from above (an indirect connection) while the remaining free area of the strainer clears the surrounding floor area. Threaded to accurately adjust to the level of adjacent flooring, the strainer head is available in 5", 6", 7" and 8" round or square geometries. Fabricated of Duco coated cast iron, the body of the drain has an integral flashing collar for a watertight seal with flooring materials.