4K maintenance kit for Twistair Rotary Screw compressors (RS5, RS7, RS10).  Includes 3L of mineral oil, 1x Air Filter, 1x Oil Filter, and 1x Oil Separator.

The only difference between this kit and the 2K kit is that this kit includes the oil separator which should be changed every 4,000 hours.

Maintenance is due on these compressors every 2,000 hours – alternate between this 4K kit and the 2K kit at each service interval.