The 12-Place polycarbonate 0°C Test Tube Cooler replaces messy ice baths. It will maintain temperature below 1°C for up to 5 hours. Excellent for transporting samples in Vacutainers™ in hospitals and clinics it will accommodate up to twelve 12-13mm diameter tubes with a tube height up to 125 mm when lid is latched. Material: green polycarbonate lower section filled with a non-toxic gel non-filled/clear polycarbonate lid with handle. Capacity: 12 tubes. Tube diameter: 12-13mm. Tube array: 3 x 4. Dimensions (L x W x H): 197 x 140 x 190mm (7-3/4 x 5-1/2 x 7-1/2 inches). Weight: 3.5 lbs (1.59kg). 1/Case. Nalgene® #: 5116-1300.