Air Amplifier Kit High Efficiency Fixed Material Aluminum Amplification Ratio 18 CFM @ 80 PSI 8.1 cfm Air Output Volume CFM @ 80 psi 436 cfm Air Inlet 1/4 in NPT Inside Dia 0.84 in Inlet Dia 1.22 in Discharge Dia 1.22 in Overall Length 2.88 in Pressure Range 5 to 120 psi Max dBA 72 dBA Temp Rating 275 Degrees F Includes Filter Separator Pressure Regulator Shim Set