When your property is prone to stormwater flooding, you’ll need to drain the water before it leads to slip hazards, hardscape and soil erosion, and costly water damage. The 12 in. Square Catch Basin Kit is a simple home improvement project to capture heavy flows on driveways, parking lots, and landscaped areas. Kit includes a 12 in. catch basin drain with 2 openings, 1 square drain grain grate in galvanized steel, 2 locking outlet adapters, and 1 outlet plug. Catch basin connects to 3 in. & 4 in. sewer and drain, single-wall corrugated, triple-wall, and DWV/Sch. 40 pipes using the included locking outlet adapters. 6 in. plug seals basin opening. Built-in sump is easy to access and clean. Basin made of polypropylene (PP) treated with UV inhibitors.