The PDO300PA is a 'Compact' Dropout unit and is used as an inline point of use liquid water separator and contaminant remover. The unique design allows it to efficiently remove >99.9999% of liquid water and remove other contaminants down to 1 micron. Features & Benefits -Guaranteed 99.99% liquid water removal -Particulate removal to 1 micron -Superior protection for your compressed air equipment at point of use -Stand-alone replacement for water separators and/or coalescing filters -Maintains its performance levels during start up where it reaches optimum performance in a fraction of a second -All the protection you need in one device instead of having to purchase and maintain a multiplicity of different products -Built-in auto-drain -No mains power -Maintenance free -Significantly lower life cycle costs -Instantaneous recovery from pulsed flows or stop start -No increase in pressure drop caused by blocked filters -Significantly lower life cycle costs -Easy to install