Air Amplifier Kit Amplification Ratio 22 Inlet Size 1/2 in Air Inlet Type NPT Inlet Diameter 4 in Discharge Dia 3 in Maximum Sound Level 83 dBA Body Material Stainless Steel Air Consumption 35.2 scfm Air Output Volume @ 80 psi 774 scfm Output Type Adjustable Includes Adjustable Air Amplifier Includes Filter Separator Filter Separator Included Includes Pressure Regulator Pressure Regulator Included Includes Shims Shims Not Included System of Measurement Inch Overall Length 4 in