Manhole Chamber Riser - 320mm Diameter Gardena They make it easy to

They make it easy to join into existing drainage or change direction where needed

Crafted from 100% recycled High-Density Polyethylene (HDPE)

Whether you need to optimize water flow

Tough Woven Membrane In Handy Sized Rolls For Ground Stabilisation

Manhole Chamber Riser - 320mm Diameter Gardena They make it easy toThis chamber riser is suitable for up to 3. 5 tonnes loading when used with corresponding bases and manhole covers. Tech Spec Clear Opening: 320mm (diameter) External Dimensions: 355mm(diameter) x 440mm(depth) (provides a 400mm rise) Approximately 2. 6kg in weight Includes joint seal Manufactured from recycled material Compatible with CD U353 Chamber Base