Connection to structures made of HOBAS centrifugally cast glass fiber reinforced unsaturated polyester resin (GRP) pipe manufactured to ÖNORM standard. The shaft height is measured from the floor channel to the top edge of the cover frame or lid. The building connection consists of the pipe shaft, leaktight laminated base, leaktight laminated sockets for inlet and outlet to suit all pipe materials, and the cleaning port with cover. Installation aids are integrated.

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