Ralli 4 Stroke High-Pressure knapsack sprayer can be used on various types of field crops. This knapsack power sprayer is spraying devices which are widely used in various farms and fields to prevent the crops from pests. This device is widely applicable for spraying on cotton, rice and various other fruits and vegetable crops. These knapsack power sprayer can store up to 20 liters of chemicals. It is loaded with large 20 liters tank capacity, there will be enough chemical to let you spray the farms. It's high-pressure piston pumps are used for achieving proper air pressure in the device.