The manhole box KSECK trench box for quick Manhole Construction using trench box installation technique.

It is the perfect complement for standard monobloc trench box such as light KVL, KS60 and KS100.

The U-form design of the shape have a thickness of 0,50 m. Thus, a 1,00 m wide Manhole is formed.

These box can also be used primarily for the installation of precast manholes.