Viewing Tow Tractors » Model ET Tow Tractors Model ET1 Three Wheel Tow Tractor (click here for info) Code: ET1 Towing Capacity: 1 Tonnes Model ET2 Three Wheel Tow Tractor (click here for info) Code: ET2 Towing Capacity: 2 Tonnes Model ET3 Three Wheel Tow Tractor (click here for info) Code: ET3 Towing Capacity: 3 Tonnes Model ET6 Three Wheel Tow Tractor (click here for info) Code: ET6 Towing Capacity: 6 Tonnes Model ET7 Four Wheel Tow Tractor (click here for info) Code: ET7 Towing Capacity: 7 Tonnes Models ET 8 - ET12 Four Wheel Tow Tractors (click here for info) Code: ET8 - ET12 Towing Capacity: 8 Tonnes - 12 Tonnes Models ET16 - ET20 Four Wheel Tow Tractors (click here for info) Code: ET16 - ET20 Towing Capacity: 16 Tonnes - 20 Tonnes