12x12 Plastic NEO catch basin (NEO 300-CBP), galvanized steel grate ADAVodaland's 12x12 Plastic NEO catch basin is a cone shaped basin with a 12" width, length, and height. This catch basin comes with an B class galvanized steel grate with ADA compliant openings. The B load class is designed to withstand light vehicle traffic. The basin includes a pipe connection adapter and are available in diameters from 2 1 2, and 4 (see drawing for details). Alternately, you can use the connection cut outs on the side and bottom