Kohler offer an EFI water cooled option to the Command Pro V Twins in the form of the Kohler Aegis range. These models are not regularly stocked but can be brought in to suit applications where air flow may be limited and water cooled is a better option. EFI (electronic fuel injection) provides a cost saving greater fuel efficiency which is a must in operation cost saving measures. Models are available through 20 to 31 HP in Horizontal Shaft.