Fendall Flash Flood utilizes sealed cartridges that contain one gallon of preserved and pH balanced Sperian Saline solution The Fendall Flash Flood delivery system offers immediate, hands-free eye flushing, and is portable to meet the needs of changing work-place hazards Removing the pull strap easily activates the system, while dual nozzles provide flushing to both eyes simultaneously When activated, Fendall Flash Flood delivers saline solution for three minutes