Solo SO 473/P knap sack garden sprayer with a 12 litre tank capacity, piston pump & 50cm spray lance. Knap sack or back pack garden sprayers can be used to disperse both feed & pest control liquid mixtures. Worn on the back you only have to use one hand to operate the machine with the trigger. The Solo SO 473/P has a manually adjustable pressure regulator. Uses 4bar/60psi maximum spray pressure. Dry Weight: 3.9kg