Double-wall vacuum and super insulation provides long term storage of liquid nitrogenUltra-low temperature preservation of biological samplesCryoseal has a convenient holding time and capacityRugged, reliable, efficient & economical in operation with long lifeHigh strength aluminium alloy provides sturdiness yet is lightweightContainers are available to store vials in convenient box type storage racksDry Shipper is designed to store biological samples in vapour phase at ultra-low temperature of (-) 150 or below.