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The Eaton breather filters of the BF-WP Series "breathe" air in and out as the oil level rises and falls. The filters prevent the penetration of contamination from the ambient air in the hydraulic fluid. This circulating air contains articles and moisture that can cause corrosion, increase equipment wear, and reduce fluid performance.

Filter Type
Air flow
10P: 106-198 gpm
(40-750 l/min)
10VG: 17-37 gpm
(64-140 l/min)
Thread connection

Core features

  • Refillable with drying agent
  • Available with adapter and clogging indicator
  • Replacement spin-on air filter available separately
  • Seal and plastic plug prevent moisture entering before installation


  • Hydraulic systems
  • Bearing lubrication systems
  • Mobile earthmoving equipment
  • Gearboxes
  • Robotic hydraulic systems
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