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

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.