Amazon.com: CAPTIVE-AIRE Restaurant Canopy Hood Grease Rated Exhaust Fan- Direct Drive Centrifugal Upblast Exhaust Fan- 40" Fan Base, 208 Volt Three Phase Motor 7500 CFM (DU300HFA) : Appliances
2300 CFM- 24.75"x 24.75" Base - All Around Industry Supply S-ACW500-DU85 Upblast - 24.75"x24.75" Base - Exhaust Fan 115V/230V-1PH - All Around Industry Supply
800 - 3000 CFM Premium Efficiency Direct Drive Upblast Exhaust Fan with Speed Controller (.75 HP / 115 V / Single Phase)
Amazon.com: Centrifugal Upblast, High Speed Direct Drive Exhaust Fan, Single Phase with Speed Control 1000-1500 CFM (VXD50) : Tools & Home Improvement
Roof Exhaust fans
Amazon.com: Centrifugal Upblast, High Speed Direct Drive Premium Efficiency 3 Phase Restaurant Exhaust Fans with Variable Frequency Drive 4000 CFM (VXD200) : Tools & Home Improvement
TXB Upblast Belt Drive Centrifugal Restaurant/Utility Exhaust Fan
Model DRV - Upblast Roof Exhaust Fan - Direct Drive - Carl J Bush Company