Vortex Tube Material Stainless Steel 30 CFM @ 100 psi 2000 BtuH @ 100 psi Air Inlet 1/4 in (M)NPT Pressure Range 80 to 100 psi Temp Rating 200 Degrees F Outside Dia 1.90 In. Overall Length 5.68 In. Differential Range 28 Degrees to 129 Degrees F Includes -