Visotubes are rigid polycarbonate storage tubes used as an alternative to goblet and straw systems in liquid nitrogen storage. Cryolab supplies the full CBS Visotube range: round visotubes, triangular visotubes, hexagonal visotubes, and polygonal visotubes. The different geometries maximise the number of straws packed into each tube, with triangular and hexagonal formats offering higher packing density than round alternatives.
CBS ID and obturating rods seal and identify each visotube, and thick and thin ID rods in multiple colours provide additional identification at the individual tube level. Visotubes are particularly favoured in sperm banks and veterinary genetics facilities managing large inventories within CryoCan and CryoNest tanks, where maximising storage density per canister position directly reduces operating costs and the number of storage vessels required.