Made of strong 20 ounce copper. Sandblasted flashing for great waterproofing membrane adhesion. Seamless flashing and drain basin. Comes with strong ABS Cyclolac dome strainer. 2", 3", 4", and 6" sizes available. Copper outperforms the competition because copper does not rust, melt, or crack like plastic. * Area roof drain * 20 Ounce seamless copper drain basin * Sandblasted 20 oz. copper flashing for great membrane adhesion * 2", 3", 4", or 6" bronze fitting. * Heavy duty ABS Cyclolac dome strainer * 10" diameter basin * Manufactured in the USA by Thunderbird Products * This item is also available with optional overflow * This item is also available in Stainless Steel, TPO Clad, and PVC Clad Note on Fittings: Two types of fittings are available. A threaded adapter fitting is used primarily with 2" PVC pipe applications. The threads on the bronze fittings are male and can be attached to a threaded female PVC adapter. A no-hub fitting is the standard fitting used in the industry. With this fitting a rubber coupling is used to connect the drain to the drainage pipe.