22x22 Plastic NEO catch basin (NEO 550-CBP), green plastic grate, A ClassVodaland's 22x22 plastic NEO catch basin is a cone shaped basin with a 22" width, length, and height. This catch basin comes with an A class plastic green grate with a mesh design. The A load class is designed to withstand pedestrian traffic. The basin includes a pipe connection adapter available in diameters of 4, 6" and 8 (see drawing for details). Alternately, you can use the connection cut outs on the side and bottom directly with various sizes