This is a general purpose, lever-operated knapsack sprayer, suitable for a wide range of agricultural and horticultural spraying treatments, Features: Tank made of high quality PE, Scientifically designed large volume air chamber, high efficiency and quick pressure arising, Chrome plated S.S spray lance or brass spray lance, Adjustable brass cone nozzle supplied for spraying pesticides and plastic fan nozzle supplied for spraying herbicides, Rocker bar fixer can fix the rocker bar and spray lance for easy carrying and storage, On/off trigger valve with lock catch for continuous spraying, Reinforced PVC spray hose for long life use, With comfortable and adjustable carrying straps. Specifications: Tank capacity: 20Ltrs, Air chamber capacity: 1L, Working pressure: 2.0 - 3.bars.