Grade Y for the Air & Process APF Series line is the fine-stage oil-removal coalescer in a typical compressed-air filtration train, rated to 1 micron and works to reduce residual oil aerosol carryover to a level suitable for sensitive downstream equipment, instrumentation and end-product contact. The Ultramax Systems Grade Y element is built to match the Air & Process OEM specification on dimensional fit and filtration outcome, so it slots straight into the original housing with no modification. A like-for-like, Australian-stocked replacement at a meaningful saving against the genuine Air & Process part, with comparable service life and air-quality outcomes.