Auto Drain is a component in the Air Unit with media passing through the wind. This auto drain is added if the user wants the Air Unit to be used to drain automatically or can drain automatically when the water in the filter is fully filled.
Auto Drain is an essential part of spare compressor parts in all types of installations to help improve air quality. Auto drain automatically empties the water reservoir condensed by the compressor wind pressure. If the water is complete, the auto drain will drain automatically.
So, make sure that you take good care of the auto drain!