Put National Diversified Sales 1882GRKIT 18" Black Square Catch Basin Drain Kit with Green Plastic Grate in place to capture heavy flows from lawns, landscaped areas, parks, courtyards, and driveways, and carry the excess water away to drain pipe for proper release downstream. Kit includes a 2-opening catch basin and plastic drain grate made of high-density polyethylene (HDPE), two outlet adapters, two reducer rings, and one drain plug. Connects to 6" & 8" sewer and drain pipes and single-wall corrugated pipes; additional outlet adapters sold separately to connect to 3" & 4" drain pipes. Hassle-free limited lifetime warranty guarantees the NDS product is free from defects—or we’ll replace it.