Petrol Leaf Blower 2 Stroke 42.7cc Backpack Commercial 540km/HPetrol Leaf Blower 2 Stroke 42. 7cc Backpack Commercial 540km H When looking for an excellent fuel economy and enhanced comfort in a backpack blower, take a look at our King Tech Leaf Blower. This blower has what it takes to get the job done while providing fewer refuels and reduced operator fatigue. This Backpack Leaf Blower provides the added power and air speed needed to clear leaves, sand, gravel and other debris from larger land areas. Its