Vacuum Ejector, Pressure Port Size 1/4 in, Pressure Port Type Tube, Vacuum Port Size 1/8 in, Vacuum Port Type BSPT, Maximum Flow Rate 5 lpm, Maximum Supply Pressure 87 psi, Vacuum Pressure @ 40 PSI -35 kPa, Overall Length 54 mm, Maximum Operating Temperature 60 Degrees C, Includes Muffler, Series ZH, Vacuum Pressure @ 75 PSI -85 kPa.