Ice-free M30-PF CoolBox System is a versatile ice-free alternative to ice buckets and gel-filled coolers. Cool, (snap)freeze or transport up to 30 1.5ml or 2.0ml conical-bottom microfuge tubes without worry of contamination or temperature variation. Comes ready to use with CoolBox, CoolRack M30-PF, blue +2C cooling cartridge (1), red wet ice cartridge, purple insulator pad. BioCision BCS-134