Skip to content
Top view of NDS 990 9 x 9 inch green square catch basin grate made from UV-stabilized HDPE with slotted openings and raised rim, ideal for landscape drainage.

NDS 990 9 x 9 in. Square HDPE Grate, Green, UV-Stabilized

Brand: NDS
Save 25%
$56.23
$42.17
SKU 990
In Stock (116)

Notify me when back in stock

Durable NDS 990 9 x 9 in. square grate in green, engineered to cover 9-inch catch basins and keep leaves and debris out of your drainage system. Constructed from UV‑stabilized high-density polyethylene (HDPE) for long-term outdoor performance and chemical resistance.

  • Fits: Designed to fit NDS 9 in. square catch basins, risers, and low-profile adapters for easy system compatibility.
  • Material: UV‑stabilized HDPE provides corrosion- and rustproof performance while resisting fading and cracking from sunlight.
  • Performance: Slotted pattern lets surface water flow through while blocking debris; suitable for lawns, patios and walkways.
  • Installation: Lightweight and easy to install—drops into the compatible catch basin and can be secured per manufacturer instructions.
  • Durability: Chemical-resistant, maintenance-free construction for reliable, long service life in outdoor environments.
  • Compatibility: Works with the NDS 900 Series catch basins and common drainage components for integrated stormwater control.

Choose the NDS 990 grate when you need an economical, low-maintenance cover that blends into landscaping while protecting drains. For technical specifications, load ratings, and installation drawings, consult the NDS product literature and tech sheets available from the manufacturer.

Reviews

Frequently Asked Questions

What catch basins does this grate fit?
Fits standard 9-inch square catch basins, risers, and low-profile adapters for straightforward compatibility.
What material is the grate made of?
Made from UV‑stabilized high-density polyethylene (HDPE) for chemical resistance and long-term outdoor use.
Is this grate suitable for vehicle traffic?
Designed for pedestrian and light vehicular applications when used with compatible 9-inch catch basins; check installation details for load ratings.
How is the grate installed and secured?
The grate drops into compatible 9-inch catch basins and can be secured per the manufacturer’s installation instructions; fasteners are not supplied.

Add a FREE Pair of Gloves to Your Order

Spend $35+ Add a FREE Pair of Gloves to Your Order Select Your Size