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Connect Male BSPP (ISO 228/1) parallel thread pressure gauge or other Male BSPP device to a Ralston hand pump or nitrogen calibration equipment.

  • Connect pressure gauges with Male BSPP connection to Ralston hand pumps, nitrogen calibration devices or any male Quick-test adapter
  • A seal is made using a bonded seal ring or copper crush washer for pressure gauges with male BSPP connections
  • Made in USA
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