OPW 12 in. 104 Series Cast Iron Manhole w/ 11 1/4 in. Skirt

12 in.
11 1/4 in. Skirt
Product Type:
Cast Iron
30.00 LBS
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Heavily ribbed cast iron covers and body rings ensure maximum load bearing capacity on cast iron manholes and fill boxes. These manholes are ideal for connecting underground tank lines directly to the surface without sump enclosures. A variety of features available on cast iron manholes and fill boxes make them the perfect choice for many applications. A sturdy steel skirt on the standard 104A extends nearly a foot below grade to ensure trouble-free installation in deep concrete, and optional skirts that extend a full 19 1/4" below grade are available in 12" and 18" diameters for sandy soil locations.


  • 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
  • Body ring: Cast iron
  • Cover: Cast iron
  • Skirt: Galvanized steel