- 4 in. Green Flat Top Structural Foam Polyolefin Atrium Grate with UV inhibitors.
- Open surface area of 14.50 Sq.In.
- Flow rate of 19.00 gpm.
- Fits 4 in. sewer and drain pipe and fittings, 4 in. corrugated pipe, and 4 in. triple wall pipe.
- Ideal for planter beds, mulch areas, window wells & areas prone to debris collection