Over six cubic feet of storage space. Fit six 0550 cases per 463L military pallet, 18 when stacked. Four extra-deep base-to-lid locking cleats ensure maximum stacking stability. Optional Pallet Riser Kit. Optional Caster Wheel Kit complete with brakes. Easy open Double Throw latches. Open cell core with solid wall design - strong, light weight. Reinforced honeycomb deck and lid for added strength. O-ring seal for dust and water resistant seal (IP55). Dual Integrated Automatic Pressure Equalization Valves. Double wide grip fold down handles - makes lifting easy. Stainless steel hardware and padlock protectors. Locking metal Lidstays keep lid locked in open position.