Comparison : Item # 121-000-0880, Model FC-40 Plus, Single Feeder Cube, 120V
Item # 121-000-0883, Model FC-42 Plus, Dual Feeder Cube, 120V
Item # 121-000-0893, Model FC-100 Plus, Triple Feeder Cube, 120V
Item # 121-000-8780, Model FC-40-240 Plus, Single Feeder Cube, 240V
Item # 121-000-8781, Model FC-42-240 Plus, Dual Feeder Cube, 240V