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Home / Products / Parts & Supplies / Air and Gas Filters / Ultrapoly™ PE Particulate Elements

Ultrapoly™ PE Particulate Elements


Donaldson Ultrapoly P prefilter elements utilize a highly porous sintered polyethylene media for absolute filtration of particles down to 25 µm in size. The primary filtration mechanism of this media is sieving, which captures most particles near the surface allowing for regeneration of the element and reduced operating cost through fewer element change-outs. Although the Ultrapoly P is primarily used as a particulate prefilter, a simple reversal of flow through the element allows the Ultrapoly P to be used as an effective course coalescing filter element, removing bulk quantities of water and oil from an air or gas stream (standard housings are equipped with an internal float drain, so no special equipment is required).
Features and Benefits:

  • Void volume: porosity grade 45%: High dirt holding capacity, Lower differential pressure
  • Removal of contaminants down to 25 µm: Guaranteed retention grade
  • Regenerative: Economical, longer service lifetime


  • Particle retention rate related to 25 µm: P = 100%
  • Oil retention rate according to ISO 12500-1: P = 90%
  • Residual content at an inlet concentration of 10 mg/Nm3: P = 1