The ultra-freeze is a revolutionary product that will render the use of Dry Ice in the transport of biological and other samples redundant. Through the use of patent pending phase change technology the ultra-freeze will maintain a temperature range of -80°C to -20°C for a period exceeding 72 hours. This will also provide a temperature below 0°C for 100+ hours. The ultra-freeze’s performance has been thoroughly tested and verified by independent laboratories. It is suitable for the transport of non-hazardous materials, biological substances, infectious substances and has a capacity of 3.0 Litres.