Hydraulic Couplers

  • Hydraulic coupler is used to lubricate standard grease fittings.
  • Hardened coupler body withstands high pressure without deformation.
  • Fully hardened spring steel jaws.
  • Hexagonal nut for easy tightening.
  • Recommended for use with hand operated grease guns.
  • With built-in ball check which prevents leak and lubricant backup if the grease gun your using does not feature a check valve.


Grease fitting couplers are often referred to as hydraulic couplers, zerk couplers, or lubrication couplers.




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