These devices are compact and lightweight intended to be packed in a survival Kit. The reverse osmosis device must be able to fit into the inner container rucksack of the ACES II survival kit with the dimensions 2.5” Tall (Flat) x 16.5” Long x 12” Wide. The device must also be able to convert 11.5 – 15.5 cups of salt water into potable water per day. This item must also meet the requirements listed in Technical Order 14S1-3-51 table 7-10 as an optional component. Features Required:• Produce at least 1 liter/hour of potable water from seawater • Operate manually, requiring no external power • Be approved for survival raft use (e.g., FAA, NSN assignment) • Withstand saltwater immersion, high pressure, and rough handling • Fit within a compact kit footprint • Require minimal maintenance and survive storage in harsh environments These requirements are military-unique due to regulatory certification for use in aviation/maritime survival kits. Commercial camping filters and consumer desalination systems do not meet Reverse Osmosis (RO) capacity, durability, or certification requirements. Long lead items include the patented RO membranes and specialized seals.