sealing kit for pipe inflow channels for sealing pipes (plastic, cast iron, stainless steel) d 160 - 165 mm passing through walls (basement outer walls / base plates etc.). Massive lip seal with high-quality bitumen collar and rugged locknut - easy to slide on (also over pipe collars) and - due to the solely usage of elastic materials - attachable also near building corners. Leak tightness certified up to 6 m water column (also with tolerance of up to 10% from right angle)!