knapsack sprayer 1.high quality 2.Internal,high-efficiency piston pump 3.multi-spraying head 4.safe working pressure JN-ZD20A knapsack sprayer1.reasonable design2.multi-spraying head3.hand sprayer,safe and labor saving4.more flux,better atomizing5.easy operation6.fast pressure boosting7.safe service8.good tightness knapsack sprayer knapsack sprayerModel JN-ZD20A Logo Capacity 20L brandJIANGNANN.W ...