National Diversified Sales 1200MTLKIT 12" Black Square Catch Basin Drain Kit with Galvanized Steel Grate 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. Hassle-free limited lifetime warranty guarantees the NDS product is free from defects, or we’ll replace it.