Blue Color Maintain -10°C to -20°C for up to 3 hours One side holds Twenty 500µl/0.65ml microtubes Other Side holds twenty 1.5-2.0ml microtubes 4 racks/case
96-place Iso-Freeze PCR Plate Racks Filled with temperature dependent gel SBS compliant for automation Color Changes: Purple=Cold, Pink=Warm Hold 4°C for about 2.5 hours 2/pack, 5/case