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NDS 991 9 x 9 in. Square Atrium Catch Basin Grate - Green

Brand: NDS | SKU: 991

Product Overview

The NDS 991 green atrium grate combines a square 9-inch catch-basin footprint with a raised inlet for locations where leaves, mulch and landscape debris may collect around a flat grate. Water can enter through the elevated openings while the grate helps keep larger debris out of the basin below.

Key Features

  • 9 x 9 in. nominal square atrium grate
  • Raised inlet for debris-prone locations
  • Green HDPE construction
  • UV-resistant, rustproof plastic

Common Uses

Landscape drainage points, planter areas and other locations where a raised catch-basin inlet is preferable to a flat grate.

Technical Specifications

  • Material: HDPE
  • Color: Green
  • Length: 9 in.
  • Width: 9 in.
  • Height: 4-3/4 in.
  • Weight: 0.87 lb.

Compatibility & Installation Notes

Use with the compatible NDS 9-inch catch-basin system. Keep the raised openings clear enough for runoff to enter and maintain access for basin cleaning.

Frequently Asked Questions

Why choose an atrium grate?

Its raised openings can continue accepting runoff when mulch or leaves accumulate around the base.

Is it a flat square grate?

No. It has a 9 x 9-inch square footprint with a raised atrium-style inlet.

Why Buy From Big Frog Supply?

NDS 991 gives a 9-inch catch basin a landscape-friendly raised inlet where debris accumulation is a concern.

Material: HDPE
Color: Green

Length: 9"
Width: 9"
Height: 4-3/4"
Weight: 0.87 lbs

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