Item Vacuum Ejector, Exhaust Port Size 1/4 in, Exhaust Port Type BSPT, Includes Muffler, Maximum Flow Rate 40 lpm, Maximum Operating Temperature 60 Degrees C, Maximum Supply Pressure 87 psi, Overall Length 94.5 mm, Overall Width 18.5 mm, Pressure Port Size 1/8 in, Pressure Port Type BSPT, Series ZH, Vacuum Port Size 1/4 in, Vacuum Port Type BSPT, Vacuum Pressure @ 40 PSI -20 kPa, Vacuum Pressure @ 75 PSI -48 kPa, Weight 53 g