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12" Square Atrium Grate, Black

Atrium grates are ideal for planter beds, mulch areas, window wells, and areas prone to debris collection. This grate helps to collect and remove excess water from driveways, patios and any other outdoor areas, designed for maximum durability to handle light foot traffic. NDS grates are a proven alternative to traditional concrete drains with UV inhibitors are used to prevent fading and cracking from the sun, chemical-resistant, rustproof and maintenance-free, lightweight and easy to install.

Structural Foam Polyolefin Dome Atrium Grate with UV inhibitor.
Open surface area approx. 50.50 square inches. 154.79 GPM.
Fits 12x12 Catch Basins
Color: Black

Product type Grates
Material HDPE
Color Black
Length 11.75
Width 11.75 in.
Height 6"
Weight 1.7400

Catalog & Brochures

Drainage Catalog


How do I choose the right size catch basin for my drainage system?
S5 Sustainable stormwater Solutions
Drainage Systems for Landscape and Yard: Using Catch Basins to Capture Run-off
S5 Intro
How do I prevent water from puddling in my planter area? NDS Yard Drainage Systems

Case Studies

Technical Information

CSI sheets: Dry Well Flo Well Stormwater Leaching System Sec 02630
CSI sheets: Flo Well Manufactured Dry Wells Guide Specification 4 13 15
Specifications Sheets: 12" Square Catch Basin 1280 1290
Specifications Sheets: NDS Catch Basin Flow Capacities
Specifications Sheets: NDS Catch Basin Invert Table