Use the versatile 10 in. & 12 in. outlet adapter to make the connection from a 24 in. catch basin drain to a variety of drain pipe sizes. The outlet adapter fits 10 in. and 12 in. sewer and drain pipes directly, connects to 8 in. drain pipes with outlet adapter (1888), and includes a reducer ring (1890) to accommodate 3 in., 4 in., and 6 in. sewer and drain pipes using the designated outlet adapter for the pipe size. Adapter is made of polyethylene, reducer ring is made of polystyrene.