ThermoSafe U-tek 412 Phase Change Material Gel, -1°C Temperature, 6.75" L x 4" W x 1" H (Case of 24)

Phase change formulas ideal for products requiring frozen temperatures or extreme cold that may not tolerate dry ice or CO2. Utek phase change materials provide thermal solutions for shipping temperature critical packages during transit. Available in a broad selection of styles and a multitude of sizes, they€re designed to provide reliable temperature protection for a vast array of products and packages.