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3 Series (1/4 size )

Hosexpress is a proud distributor of Foster products like the ¼ “one way shut off”-3 series couplers. One Way Shut-Off - Socket is valved, shutting off supply line at disconnect.  The Plug is unvalved, exhausting downstream line at disconnect. With these ¼ size couplers you should install the socket on a pressure line.

Specifications include:

  • 65% more ball retention
  • Precision leak-proof seal
  • Can be used as 3-Way on-off valve without disconnecting
  • One hand operation
  • Lowest cost, general purpose coupler

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