The largest catch basin in the lineup, the 24 in. Square Catch Basin Kit with grate and outlet adapters is designed for managing heavy flows from lawns, landscaped areas, parks, driveways, and courtyards. Kit includes a 2-opening polyethylene catch basin drain, black polyethylene grate, 3 outlet adapters, 2 reducer rings, and plug. Basin Kit connects to 8 in., 10 in., and 12 in. drain pipe.