Manhole Chamber Riser - 450mm Diameter grasstop manhole cover G90 is ideal beneath gravel

G90 is ideal beneath gravel to prevent weed growth and stop the sub-base and gravel from mixing over time

Durable Arena Base Package For High-Performance Equestrian Use

Can this package be used for commercial arenas

suitable for light domestic drive

Rubber sealing gasket allows this cover to be installed internally since it helps with blocking odours and smells

Manhole Chamber Riser - 450mm Diameter grasstop manhole cover G90 is ideal beneath gravelThis chamber riser is suitable for up to 72. 5 tonnes loading when used with corresponding bases and manhole covers. Tech Spec Clear Opening 450mm(diameter) External Dimensions S00mm(diameter) x 340mm(depth)(provides a 300mm rise) Approximately 3. 5kg in weight Includes joint seal Manufactured from recycled material Compatible with CD U453 Chamber Base