Designed to fit the Domnick Hunter DHY D Series line, Grade P is the first-stage general-purpose coalescer in a typical compressed-air filtration train, rated to 3 micron — its role is to strip bulk liquid water, oil aerosol and solid particulate so finer downstream stages aren't loaded prematurely. The Ultramax Systems Grade P element is built to match the Domnick Hunter OEM specification on dimensional fit and filtration outcome, so it slots straight into the genuine Domnick Hunter housing with no modification. A like-for-like, Australian-stocked replacement at a meaningful saving against the genuine Domnick Hunter part, with comparable service life and air-quality outcomes.