This Solo Manual Backpack Sprayer has been constructed with a piston pump and can provide a max. pressure of 4 bar (6 with a plug). This sprayer also benefits from a large 15 litre tank capacity to reduce time spent refilling, and this model includes adjustable pump levers, VITON seals, a handle with integral spray wand retainer, and wide shoulder straps for extra comfort. This unit is ideal for use in agriculture, disinfection, pest control, plant protection and woodland maintenance applications and is a more versatile option when compared to the classic model.