... high efficiency. easy to operate good power engine Knapsack gasoline engine power mist duster, mist blower, ... impeller , high speed rotation, long spray range.2, With big filling opening, convenient to fill in ... vibration, soft and comfortable.Technical Specification:MODEL 3WF-2.6Fan Rotation Speed (r/min) 7500~8000Tank Capacity ... .5/13.5Packing Size(cm) 53X44X68 knapsack mist duster, mist blower 3WF-2.6