OPW Cast Iron Manhole
- Full-size internal diameters for maximum access and working area
- Highway 20 Rated (H20) – All OPW spill containers and manholes exceed the requirements of the Highway -20 rating.
- Rugged cast iron covers and body rings
- Cast-in non-skid finish on covers
- Sturdy, extra long steel skirts
- Individually boxed for ease of handling