NDS® 1801SDG Heavy-Duty Grate, Round, 18 in Dia, 21-1/16 in L, 2-1/2 in H, Polypropylene, Green

NDS® Heavy-Duty Grate, Round Shape, 18 in Diameter, 21-1/16 in Length, 2-1/2 in Height, 0.66 in Opening, Surface Area: 75.55 sq-in, 231.12 gpm Flow Rate, Polypropylene, Green, For Use With: 18 in Sewer and Drain Fittings and 18 Corrugated Pipes