This Sterile, buffered, isotonic Solution has a Twist off, tamper evident cap with up to a 4-year Shelf Life. It is designed to flush the eyes of contaminates to provide a first response to eye and wound irrigation. The functional wall station endures the eyewash is always nearby, accessible and easily seen. The wall mounted model comes with the eyewash diffuser cup that fit comfortably over the eye and ensures an even flow of flushing solution.