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Eaton Filter Bags

High capacity extended-life needle felt with ultrafine nylon mesh cover layer

Photo of a HAYFLOW Q filter element.



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Materials Cover Layer Seal Rings Retention Ratings
Extended-life needle felt polypropylene or polyester Nylond-monofilament mesh 10 µm Welded polypropylene or polyester SENTINEL seal ring and bottom ring 1, 5, 10, 25 µm

Image showing the ordering information for HAYFLOW Q filter elements.



  • Applicable for highly intermittent operating conditions and continuous demand
  • Long intervals between filter element change-outs (up to five times in comparison with standard needle felt filter bags)
  • High capacity depth filtration with an absolute particulate efficiency and fiber release retention through the high purity cover layer
  • Absolute particulate efficiency combined with high dirt-holding capacity
  • Fully-welded construction with patented SENTINEL® seal ring provides 100% bypass-free filtration
  • Material is free from silicone and crater-forming substances

HAYFLOW Q filter elements are a combination of proven DURAGAF extended-life filter material with precise nylon-monofilament woven material. While the DURAGAF extended-life filter material works as a high capacity pre- and depth filter, the outer mesh covers the needle felt and provides a final filter retention rating at 10 µm.


  • Automotive washing and rinsing lines
  • Paints
  • Coatings
  • Inks
  • Dispersions
  • Resins
  • Water and waste water treatment
  • Lubricants and metalworking fluids
  • Aqueous and solvent based cleaners in parts washing equipment



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Size Dimensions Filter Area Max. Operating Temperatures Max. Differential Pressure Recommended Change-out Pressure for Disposal1 Max. Flow Rates3
02 Ø 7 x 28" L (180 x 700 mm) 7.5 ft2 (0.7 m2) Polypropylene: 194 °F (90 °C)
Polyester: 302 °F (150 °C)
36.2 psi (2.5 bar) 11.6 - 21.7 psi (0.8 - 1.5 bar) 132 GPM (30 m3/h)

1 Depending on the respective application requirements.
2 For liquids with a dynamic viscosity of 1 mPa·s @ 68 °F (20 °C).

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