Air Amplifier High Efficiency Fixed Material Aluminum Amplification Ratio 25 CFM @ 80 PSI 29.2 cfm Air Output Volume CFM @ 80 psi 2 190 cfm Air Inlet 1/2 in NPT Inside Dia 3.02 in Inlet Dia 4.91 in Discharge Dia 4 in Overall Length 4.75 in Pressure Range 5 to 120 psi Max dBA 73 dBA Temp Rating 275 Degrees F