... -610CA,ARS-930CA,ARS-1050CA,ARS-1400CA Filtration rating(μm):RB Grade:1,RA Grade:0.01,CA Grade:0.01,RF ... GRADE:1(for eliminating dirt) Oil content(ppm):RB Grade:0.1,RA Grade:0.01,CA Grade ... . our elements are of a superior quality with additional features: 1.Most of the inner and outer cylinders are made of ...