All Snail Exhause fan Home » Shop Pages » Vantilation System » Snail Exhause fan 15″ Blower Blower 20″ Utility Set Belt Drive Shell – Restaurant Model 20″ Backward Inclined Centrifugal Utility Fan (Fan Only, Motor Not Included) 24“ Backward Inclined Centrifugal Utility Fan (Fan Only, Motor Not Included) 24“ Backward Inclined Centrifugal Utility Fan ( with 7.5HP ) 30“ Backward Inclined Centrifugal Utility Fan ( with 10HP )