Prebench manhole bases are used to alter the flow, elevation and direction of pipelines installed for storm and sanitary use.
We have stock inventory on 42 and 48 inch prebench bases. Hyland Precast offers custom prebench bases to suit whatever requirements your project may need.
We use high strength concrete, including a mix of ECOCEM®PLUS to ensure a high level of erosion resistance, extended durability, and a long service life.
Hyland Precast stocks the following prebench bases.
| Size | Diameter | Channel |
|---|---|---|
| 42″ | 150 | 200 | 250 | 300 | 375 | 450 | 2 Channel |
| 42″ | 150 | 200 | 250 | 300 | 375 | 3 Channel |
| 48″ | 525 | 600 | 2 Channel |
| 48″ | 525 | 600 | 3 Channel |
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