Browse a selection of compressor separator kits from Grainger. There maintenance, oil separator and separator kits as well as a communications module. Maintenance kits include coolant, air and oil filters, and separator filter. 5, 7.5, 10 and 15 HP Rotary screw air compressors include element and O-rings. Communication module allows sequencing of up to 8 select compressors. Buy compressor separator kits from Grainger now!