This ant cylinder can be connected to other ones by the connector sockets. You can keep it open withou animals ascaping because of a notch below the junk ring in which PTFE, talcum or paraffin oil.
Due to the circular construction the animals do not find nooks which make it easier for them to escape like they do in ordinary basins.
So this circular construction and the junk ring make this ant cylinder twice as safe.
This costruction can be stacked by intermediate elements or equipped with a lid.
It can be expanded as desired because of our plug-in system with acryl pipes and links.
If the cylinders with the upper terminals of the cover does not quite fit into the opening, so this is not fixed but still seals well!