Description With its unique ergonomic design and build to fulfil international standards, this agriculture-made piston series is the most comfortable, safe and capable piston pump knapsack sprayer (wide pressure range) The non-corrosive polypropylene tank, with no openings below the liquid level, substantially reduces any chance of user contamination. The sprayer is comprised of few parts and can be quickly dismantled for cleaning and maintenance without the use of tools.