Precast conical manhole chambers and Riser Rings have high strength, durability and resistance to weather and high temperatures, ensuring a reliable long service life of concrete manhole sections. Concrete Inspection Chambers are primarily used in sanitary sewer and storm drainage systems.

Manholes, are concrete manhole chambers, vertical watertight structure used to connect pipelines, to change direction and level, to permit access for personnel and equipment for inspection and maintenance and to allow aeration and ventilation. Precast manhole prices are based on different prefab manhole sizes.

Precast manhole risers, the function of rcc manhole riser unit is to provide a safe access connection from ground level to the pipeline. Concrete Riser rings section consists of a cylindrical section with an effective length of 150 MM to 1200 MM.

Riser rings sections are specified with and without provisions for the installment of footsteps. In precast chambers, Many types of footrests are available, or without footrests section can be used with the consent of buyer and subsequently ladders are used in concrete manholes and riser rings.