Drain stoppers are equipped with solid rubber sealing rings and are used in sewer cleaning and sewer renovation for blocking unpressurised pipes. They are clamped in the pipe by means of a thread device and thus completely seal the pipe.
All drain stoppers are manufactured with a passage that can be closed with a screw-on cap. Alternatively, a coupling for connecting a hose can be screwed onto the inch thread. They can be used in all pipe materials for pipe diameters from 36 mm to 475 mm.