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NDS 74S 3" Atrium Drain Grate — Sand, Fits 3" Pipe (9.4 sq in)

NDS 74S 3" Atrium Drain Grate — Sand, Fits 3" Pipe (9.4 sq in)

Brand: NDS
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$18.76
$14.07
SKU 74S

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Protect landscape beds, window wells, and low-flow surface areas with the NDS 74S 3" Atrium Drain Grate. Its domed design keeps leaves and mulch out of the line while allowing stormwater to pass through for reliable, low-maintenance drainage.

  • Fits 3" sewer & drain pipe and fittings, 3" single-wall corrugated pipe, and 3" triple-wall pipe for a soil-tight connection.
  • Constructed from UV-stable high-density polyethylene (HDPE) treated with UV inhibitors for long-lasting color and crack resistance.
  • Domed, open-top design with 9.4 sq. in. open surface area to block debris and maintain consistent flow.
  • Compact dimensions: 3-11/16" high with a 2-1/4" top diameter and 1/4" grate openings for effective filtration.
  • Flow capacity designed for light surface runoff (manufacturer flow rating approximately 29 GPM under standard conditions).
  • Chemical-resistant, rustproof, and lightweight — easy to install by hand, no special tools required.

Ideal for residential and light commercial drainage applications, the 74S Atrium Grate provides a maintenance-free alternative to heavier cast or concrete covers. Use it to protect inlet openings, reduce clogging, and keep landscape surfaces clean while ensuring reliable drainage performance.

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Frequently Asked Questions

What pipes and fittings does the NDS 74S Atrium Grate fit?
Fits 3" sewer and drain pipe & fittings, 3" single-wall corrugated pipe, and 3" triple-wall pipe for a soil-tight connection.
What material is the 74S Atrium Grate made from?
Made from UV-stable high-density polyethylene (HDPE) treated with UV inhibitors; chemical-resistant, lightweight, and rustproof.
How much flow can the 3" Atrium Grate handle?
Open surface area is 9.4 sq in; manufacturer flow rating is approximately 29 GPM under standard test conditions.