CoolBox Ice-Free Cooler with One Cooling Core, purple, 1/ea

No mess, no maintenance|Keep samples cold without melting ice contamination, inconvenient batteries, or power cord clutter Cooling core maintains sample temperatures at 0.5?C to 4?C for at least four hours Compatible with all Corning CoolSink? and CoolRack? sample modules (order separately)|These benchtop coolers eliminate possible contamination from ice, maintenance costs associated with battery replacement, and messy cords. Simply freeze the cooling core in a -20?C freezer for 12 or more hours, then remove and wait for core to reach 1?C before placing in holder. Once the core is installed, add your CoolSink or CoolRack module and load your samples. Samples quickly equilibrate to the core temperature and remain chilled for 4 to 16 hours. Select the CoolBox system for longer-term cooling, which features a deeper sample area capable of maintaining temperature up to 16 hours.