- 3 in.
- Made of plastic
- Round shape
- Open surface of 2.60 Sq.In.
- Flow rate of 3.41 gpm
- Fits 3 in. sewer and drain pipe and fittings, 3 in. corrugated pipe, and 3 in. triple wall pipe
- Recommended for pedestrians, bicycles, and wheelchair traffic
- Limited lifetime warranty