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Interstate Pneumatics CA681 3/8 Inch Automotive Steel Coupler x 1/2 Inch Male NPT

Interstate Pneumatics CA681 3/8 Inch Industrial Steel Coupler x 1/2 Inch Male NPT. These couplers are interchangeable with the Automotive (True-Flate) Standard series couplers produced by other manufacturers. Precision machined from solid steel bar stock which provides longevity during mechanical shock in rugged applications. Maximum working pressure 300 PSI.

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Model# CA681

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  • Steel body Zinc Plated to prevent corrosion
  • Interchangeable with other Automotive (True-Flate) couplers
  • Check Valve, forged steel


  • Body: Steel, Zinc Plated (Black)
  • NPT size: 1/2" NPT Male
  • Temperature: -40° F to 212° F
  • Type: Automotive
  • Seals: Buna-N (Nitrile)
  • Spring: Stainless Steel
  • Ball Bearing: Quantity 6, stainless steel
Model# CA681
Brand Interstate Pneumatics
CA Prop 65

California Proposition 65