NDS 913 9" Square Ductile Iron Catch Basin Grate

Heavy-duty NDS 913 9" square ductile iron catch basin grate protects 9" x 9" catch basins by keeping leaves and debris out while allowing efficient surface drainage. Engineered for durability on driveways, parking areas and landscaped spaces, this grate combines robust construction with straightforward installation.

• Material: Ductile iron construction with a black protective finish to resist shipping corrosion and provide long-term durability.
• Dimensions: 9" L x 9" W x 1-1/8" H—designed to fit the NDS 9" x 9" catch basin series and compatible risers and adapters.
• Performance: 9/16" grate openings block debris while enabling efficient runoff; open surface area and flow capacity support typical landscape and driveway drainage.
• Load Rating: H‑20/Class D rated when properly installed and encased in concrete, suitable for light-to-moderate vehicular traffic and equipment at posted speeds.
• Maintenance: Cast ductile iron forms a protective patina over time; lightly painted finish minimizes exposure during storage and shipment—no special upkeep required.
• Compatibility: Works with NDS 9" catch basins, risers, and low-profile adapters for flexible drainage layouts.
• Installation: Simple drop-in replacement or swap; follow NDS installation guidelines and encase in concrete to achieve rated load performance.

Choose the NDS 913 grate for a proven, low-maintenance solution that balances debris protection with dependable runoff capacity. For detailed specifications, flow tables and installation drawings consult the NDS product literature and technical documents.