Using self-evacuating, disposable cartridges, the new Aquarionâ„¢ eyewash from Encon offers a two-year shelf-life, is comfortable to use and easily installed on a wall, shelf, cart or vertical support beam by any individual. The cartridges achieve a non-injurious velocity for 15 minutes as per ANSI Z358.1. Visual inspections simplify maintenance.Encon Safety Products, Houston, TX.