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Nitto Kohki


Nitto Kohki 300 Series Genuine Hi Cupla Socket to 3/8" Hose Tail

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Nitto Kohki 30SH Plug Socket Hose - MADE IN JAPAN

Nitto Kohki 30SH 3/8" Plug Socket Hose offers universal coupling and provides excellent durability and application characteristics.

Suitable for:

  • General purpose workshop fittings
  • Air lines
  • Connecting factory air supply to pneumatic tool hoses
  • Handling a wide range of tasks from plant air piping to air tool hose connections
  • Suits standard Hi-Cupla plugs


  • Made in Japan
  • Important structural parts are hardened for added strength
  • SH suits hose connection
  • Design allows for quick connection/disconnection action
  • One-way automatic shut-off valve in the socket
  • Wide variety provides best choice according to application
  • Hardened important parts are extremely wear resistant and durable
  • Tested 100,000 times, coupler connection is accurate and reliable


  • Type: Hi-Cupla
  • Material: Steel (Chrome Plated)
  • Size: 3/8 inch Hose Barb 
  • Working Temperature: -20 to 80 °C
  • Working Pressure: 215 psi