NDS 4" Green Round Structural Foam Polyolefin Grate with UV inhibitors. It provides an open surface of 3.85 Sq.In. for efficient drainage with a flow rate of 5.04 gpm. Compatible with 4" sewer and drain pipe and fittings, 3" corrugated pipe, and 4" triple wall pipe, this grate is suitable for pedestrian, bicycle, and wheelchair traffic.

• 4 in. Green Round Structural Foam Polyolefin Grate with UV inhibitors.
• Open surface of 3.85 Sq.In.
• Flow rate of 5.04 gpm.
• Fits 4 in. sewer and drain pipe and fittings, 3 in. corrugated pipe, and 4 in. triple wall pipe.
• Recommended for pedestrians, bicycles, and wheelchair traffic.