EXAIR 120022 Air Amplifier, 2 In Inlet, 15.5 CFM. Air Amplifier, Amplification Ratio 22, Inlet Size 3/8 in, Air Inlet Type NPT, Inlet Diameter 2 15/16 in, Discharge Dia. Light Industrial Equipment & Tools. This listing is currently undergoing maintenance, we apologise for any inconvenience caused.