1.Very light in weight and also while in operation. 2.An ideal hi-tech hand operated knapsack sprayer. 3.Requires less number of strokes continuous spraying. 4.Sturdy & long lasting design. 5.Automatic agitation of agrochemicals in the tank. 6.Tank can be fitted on both sides of back. 7.Can be operated with both hands (left or right). 8.Prices are negotiable even for this product.