IsoFreeze MCT racks are manufactured with a gel-filled center section that uses temperature-dependent color-change material, green to yellow or purple to pink.

• Maintain a sample temperature of less than 4 °C for up to 4 hours when used at room temperature
• Color change material enables you to see how cold your samples are at a glance
• IsoFreeze color change racks undergo a dramatic change to a contrasting color at 7 °C

Tube capacity: 24× 1.5 or 2.0 ml snap or screw-cap style tubes.