Manholes made by Absolute Concrete have been used throughout the North Island of New Zealand for,
access chambers, in both stormwater and sewer applications, drop chambers, pipeline junctions,
direction changes and attenuation tanks.
The Absolute Concrete manhole system consists of precast concrete and iron components and offer
proven performance. The system includes a range of manhole diameters and riser heights, as well as
various concrete lid options, cast iron frames and covers, steps, joint sealants, clamps, and base options.