The knapsack sprayer has a capacity of 12L of liquid and is perfect to perform a versatile range of tasks from killing weeds to spraying fences. The sprayer is able to safely hold pesticides, insecticides, fertilisers and any horticultural or agricultural chemicals. The sprayer incudes 3 inter-changable nozzle tips that vary flow and spray pattern to ensure that it is suitable for any task needed. The tank includes a filter on the filling hole to help prevent blockages. The sprayer includes shoulder straps and also a long-reach 50cm lance to get those hard to reach places, and also has a locking trigger for continuous spraying.