Tough Polypropylene plastic catch basin made by NDS®. Top is 18" x 18" square with 2 openings. Includes two NDS1890 Universal Outlet Reducer Rings. Accepts NDS® 18x18 polyolefin slotted grates, galvanized bar grates, atrium grates, and the Iron Age 18" x 18" cast iron grate - Interlaken pattern.
