https://www.ebay.com/sch/i.html?_nkw=Allegro+Venturi+Style+Pneumatic+Air+Blower+16+3+4+&_sacat=0&_dmd=2

Allegro Venturi Style Pneumatic Air Blower,16-3/4'

Regular price
$194.00
Sale price
$131.00

Venturi Style Pneumatic Air Blower, Inlet Connection 1/2 In. NPT, Base Dia. 7-1/3 In, Overall Length 16-3/4 In, Max. Inlet Pressure 140 psi, 20 scfm Air Consumed @ 40 PSIG, 30 scfm Air Consumed @ 60 PSIG, 40 scfm Air Consumed @ 80 PSIG, 650 cfm Total Air Flow @ 40 PSIG, 865 cfm Total Air Flow @ 60 PSIG, 1080 cfm Total Air Flow @ 80 PSIG, Base Material Cast Aluminum, Housing Material Plastic, Application Ventilation with Compressed Air or Steam of Hazardous or Explosive Vapors