Air Amplifier, Amplification Ratio 18, Inlet Size 1/4 in, Air Inlet Type NPT, Inlet Diameter 1 1/2 in, Discharge Dia. 1 1/4 in, Maximum Sound Level 72 dBA, Body Material Aluminum, Air Consumption 8.1 scfm, Air Output Volume @ 80 psi 146 scfm, Output Type High Efficiency Fixed, Includes Filter Separator Not Applicable, Includes Pressure Regulator Not Applicable, Includes Shims Not Applicable, Mounting Hole Diameter 1/4 in, Number of Mounting Holes 2, System of Measurement Inch