Maintenance Kit, Compatible with Brand Ingersoll-Rand, Type Pre-Filter; Oil Filter; Air Filter Lubricant, Compatible Manufacturer Part Number R Series 11-22i, Compatible Grainger Part Number 40AY54, 40AY66, 40AY67, 40AY71, 40AY86, 40AY90, 499G40, 499G41, 499G42, 499G43, 499G44, 499G45, 499G46, 499G47, 499G48, For Use With Rotary Screw Compressors, Compatible Series R Series, Number of Pieces 6