Regulate down your shop air or onboard air supply with this 5ft extension whip hose with 150 psi air regulator and shut off ball valve Perfect for use with a turbo boost leak tester or any air tool that requires a precise air pressure All connections are 1/4" NPT M-type air couplers Customer satisfaction is our primary goal, any questions or comments feel free to reach out to our direct line. Hassle free replacement of any defective components. Bundle this 5 foot extension hose with your boost leak tester to regulate down your shop air compressor pressure. Conveniently do this carside instead of back and forth to your compressor. Hook up to your boost leak tester once and no need to reach in to the motor. Perfect for pick up trucks or hard to reach areas in the motor and for onboard air supplies that are operating at higher pressures. Uses 1/4" NPT thread and M-type air connections.