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Front three-quarter product photo of NDS 3-inch gray atrium dome grate showing raised dome profile and quarter-inch grate openings, studio background.

NDS 3" Atrium Grate — 3 in. Dome Drain Grate, Gray, UV-Stable

Brand: NDS
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$20.03
$15.02
SKU 72
In Stock (4)

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The NDS 3" Atrium Grate (part no. 72) is a domed landscape drain grate engineered to block leaves, mulch and debris while allowing surface water to flow into connected drain piping. Its raised dome profile reduces clogging at the pipe entrance and the removable grate provides easy access for cleaning and maintenance.

  • Material: UV‑resistant structural HDPE (treated with UV inhibitors) for fade and crack resistance.
  • Compatibility: Fits 3" sewer & drain pipe and fittings, 3" single‑wall corrugated pipe, and 3" triple‑wall pipe for a soil‑tight connection.
  • Dimensions & Flow: Grate height 3‑11/16", top diameter 2‑1/4", 1/4" openings, 9.4 sq. in. open area; flow approx. 29 GPM.
  • Design: Raised dome profile blocks debris at the base while allowing light surface flows to pass through the top.
  • Durability: Lightweight, chemical‑resistant, rustproof and maintenance‑free; removable for quick cleaning.

Ideal for small mulched landscape beds, natural areas, patios and window wells where minimizing debris entry is important. Use the NDS Atrium Grate where a low‑profile, durable solution is needed; consult NDS literature or the product tech sheet for contractor pack and installation details.

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Frequently Asked Questions

What pipe types does this Atrium Grate fit?
It 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 grate made of and is it UV resistant?
The grate is made of UV‑resistant structural HDPE (treated with UV inhibitors) for fade and crack resistance in outdoor use.
What are the grate dimensions and flow capacity?
Grate height is 3‑11/16", top diameter 2‑1/4", open area 9.4 sq. in., with an approximate flow of 29 GPM.
How do I clean or maintain the Atrium Grate?
The dome grate is removable for access; simply lift, clear debris by hand or hose, and replace. No special tools or coatings required.