The U.S. Army Corps of Engineers Middle East District is seeking sources that can provide alternatives to HESCO barriers. The alternatives must meet the salient physical, functional, or performance characteristics of the brand name item and those specified in this sources sought notice. The required characteristics include being designed and manufactured in accordance with MIL-DTL-32188 Expeditionary Barrier System, having integrated pre-assembled cells, being compatible with existing HESCO barrier system infrastructure, and being able to contain compacted sand in various sizes. • Must be designed and manufactured in accordance with MIL-DTL-32188 Expeditionary Barrier System • Must have integrated pre-assembled, accordion-style cells with continuous mechanical pin connections • Must be compatible and interoperable with existing HESCO barrier system infrastructure • Must be able to contain compacted sand in 6-ft.x6-ft. and 8-ft.x8-ft. depth and width with heights from 7-ft. to 9-ft. • Containment system for the sand must NOT be concrete, heavy metal plate, heavy timbers, or other containers that have high penetration strengths • Containment system must NOT be wood or any other material that may pose a fire hazard