Parker Fluid Connector Group
ST Series Straight-through Interface High Flow Quick Couplings

Key Features:

  • Steel nipples are case hardened for resistance to Brinelling
  • Functionally interchanges with similar straight-through design couplings
  • Standard Nitrile seals
  • Material options available
  • Sleeve-Lok option available
  • Straight-through Interface
  • Non-valved
  • Manual sleeve


  • High pressure water
  • Steam washers
  • Carpet cleaners

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ST Series non-valved couplings provide maximum flow and low pressure drop. The smooth, open bore allows easy cleaning in applications where the same lines are used for more than one media.