Air Amplifier, Adjustable, Material Stainless Steel, Amplification Ratio 22, CFM @ 80 PSI 35.2, Air Output Volume CFM @ 80 psi 2323, Air Inlet 1/2 In. NPT, Inside Dia. 2.2 In., Inlet Dia. 4 In., Discharge Dia. 3 In., Overall Length 4.06 In., Pressure Range 5 to 120 psi, Max. dBA 83, Temp. Rating 400 Degrees F Air Amplifiers and Air Amplifier KitsCompact, lightweight, and portable amplifiers run on compressed air so electricity is not required. Both the vacuum and discharge ends can be ducted, making them excellent for drawing fresh air from another location or moving smoke and fumes away. High-efficiency amplifiers feature an exact air gap; adjustable amplifiers can be adjusted up to 0.010" at 80 psi. Kits include shim set, filter separator, pressure regulator, and filter/regulator mounting hardware.Pressure range: 5 to 120 psi Temp. rating: 275 F for aluminum; 400 F for stainless steel