This prefilter is installed before the dessicant air dryer inorder to remove the oil and water. Filtration rate: 0.01micron

Technical specification:

1. This prefilter is a high efficiency oil removal filter, designed for coalescing fine water and oil aerosols  Removes solid particles to 0.01micron, (0.01ppm (w/w) max remaining oil content).

2. Using such a prefilter before your desiccant air dryer can increase the using life of the desiccants.