Interstate Pneumatics CA661 3/8 Inch Auto Steel Coupler x 3/8 Inch Male NPT (Black Color). 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.

Features

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