An automated method and system for transitioning a bottle from a horizontal belt conveyor to the entrance of an air conveyor, and vice versa, from an air conveyor to a horizontal belt conveyor. An indexer in a circular arrangement moves around 180 degrees clockwise until the bottle drops into the air conveyor (e.g., pneumatic tube). This motion controls the bottle's movement; otherwise, the bottle would free-fall off the conveyor. The indexer rotary device provides control of the vial transition, keeping it vertical so it goes into the tube in a controlled manner.