The STP-320 is an Insulated Category B Shipping System designed for the shipment of temperature controlled shipments using phase change materials such as the SAF-T-TEMP® line as well as Dry ice as an energy source. Ideal for long distance frozen shipments. Designed for use with Saf-T-Temp® products or Dry ice for thermal control. System Components: Outer Box - OD 15.375 x 13.625 x 12.75”, Pre-printed with Biological Substance, Category B, UN 3373 and Exempt Human/Animal Specimen Markings, Orientation Arrows Inner Box - OD 6.5 x 6.5 x 8” Insulated Chest - ID 12 x 10.25 x 8” STP-111 Inner Box STP-610 Saf-T-Rap® Bubblewrap 12 x 12” STP-803 Class 9 Hazard Label STP-804 Dry Ice - UN 1845 Marking STP-710 Disposable 2-Part Secondary Pressure Vessel, Medium FEATURES: Ideal for use with Saf-T-Temp® products or Dry ice for thermal control. Performance Data Sheets available upon request. Combine with STP-520-OVPK for convenient dual shipper. Approximate Capacity: Max. Secondary Pressure Receptacle : 3 Max. 2mL Tubes: 243 Max. 10mL Tubes: 32 Max. 500mL Blood Bag: 2