3 in. Atrium Drain Grate, Model 70, Green, Fits 3 in. Pipe

Durable 3 in. Atrium Drain Grate (Model 70) designed to keep debris out of residential and light-commercial drainage systems. Molded in UV‑stabilized polyolefin, this dome-style grate rises above grade to block mulch, leaves, and other debris while allowing surface water to enter the drain.

• Fits 3" sewer & drain pipe, 3" corrugated pipe, and 3" triple-wall pipe for a soil-tight fit.
• Material: UV‑stabilized polyolefin (HDPE-grade) for weather and chemical resistance.
• Open surface area: 9.4 sq. in.; tested flow up to 29 GPM under standard conditions.
• Ideal for planter beds, mulch areas, window wells, patios, and light foot-traffic zones.
• Lightweight, maintenance-free design; removable grate allows easy access for cleaning and inspection.

Installation is simple: seat the dome grate over the connected 3 in. pipe or fitting so it sits snugly for a soil-tight installation. No special tools are required for standard drop-in applications. The raised profile helps prevent debris from entering the pipeline while allowing surface runoff to pass through efficiently. The polyolefin construction with UV inhibitors resists fading, cracking, rust, and common landscape chemicals. To maintain peak performance, remove accumulated leaves and sediment periodically and lift the grate for access to the pipe when cleaning is needed. For complete technical drawings, flow tables, and compatibility notes consult the manufacturer's product literature and distributor resources.