IS4517-1103 ISP CaseOVERVIEW Shifting loose cargo can slow down your ops and threaten the mission with damaged freight. The new ISP Case from Pelican virtually eliminates load movement with a unique Inter Stacking Pattern (ISP). The patent pending system is compatible across 6 different case sizes from 4 to 25 cubic feet of storage. Equipped with a silicone sponge O ring and pressure release valves, the ISP Case is impervious to extreme weather and wet conditions. The