• CLOSE OFF UNUSED CATCH BASIN OPENINGS: Directs water toward the remaining opening connected to drain pipe • HOW TO USE: Works with catch basins to seal off an unused opening and direct the flow of water to desired opening connected to drain pipe • HOW TO INSTALL: Insert outlet plug into any unused openings in the catch basin drain to stop the flow of water • DESIGN FEATURES: Made of high-impact polystyrene (HIPS) treated with UV inhibitors to prevent fading and cracking • SPECIFICATIONS: Connects to 9 in., 12 in., 18 in. catch basins; connects to 24 in. catch basins with 2410 adapter