The CCC® Model AD Aeration Pad / Diffuser provides a means of introducing low pressure air into a dry bulk material that has become compacted due to settling. The air will help restore the materia's natural ability to flow. The Model AD helps restore material flow without the sometimes damaging effects of vibration or more expensive and complicated flow systems. The Pads use a minimum amount of air (typically 6.5 CFM @ 3 PSI).