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Black NDS 12 in. Downspout Defender HDPE square grate showing angled face and front debris shelf

NDS 12 in. Downspout Defender Grate (Model 1200DSG)

Brand: NDS
Save 25%
$69.93
$52.45
SKU 1200DSG
In Stock (5)

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The NDS 12 in. Downspout Defender Grate (Model 1200DSG) redirects downspout flow while keeping leaves and debris out of catch basin drains. Made from durable HDPE with UV inhibitors, it reduces splashing and resists weathering.

  • Fits NDS 12 in. square catch basins, risers, and low-profile adapters
  • Accepts 2–6 in. round or square downspouts
  • Angled face with front debris shelf for easy cleaning
  • 54.54 sq in opening; flow rate ~166.84 GPM at 1/2" head
  • Lightweight (approximately 1.56 lb) black HDPE construction
  • Easy, tool-free installation and inspection

The patented Downspout Defender design deflects debris while maximizing runoff into the drain. Slide the grate forward to clear the shelf and inspect the basin below.

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Frequently Asked Questions

What catch basins and downspouts does this grate fit?
Fits NDS 12 in. square catch basins, risers, and low-profile adapters. It accepts 2–6 in. round or square downspouts for broad compatibility.
What is the grate made of and how durable is it?
Constructed from black high-density polyethylene (HDPE) treated with UV inhibitors for weather resistance. The material is lightweight yet resistant to cracking, fading, and outdoor weathering.
How do I clean or remove debris from the Downspout Defender?
Tilt the front edge up and slide the grate forward to expose the front shelf. Remove leaves and debris by hand or rinse with a hose—no special tools required.
What are the product dimensions and flow capacity?
Measures roughly 12 in. x 11-3/4 in. x 9 in. and weighs about 1.56 lb. The grate has a 54.54 sq in opening and passes approximately 166.84 GPM at a 1/2 in. head.

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