Vacuum Ejector Pressure Port Size 1/4 in Pressure Port Type Tube Vacuum Port Size 1/4 in Vacuum Port Type Tube Maximum Flow Rate 20 lpm Maximum Supply Pressure 87 psi Vacuum Pressure @ 40 PSI -20 kPa Overall Length 60 mm Maximum Operating Temperature 60 Degrees C Includes Muffler Exhaust Port Size 1/4 in Series ZH Vacuum Pressure @ 75 PSI -48 kPa