... as you need ES-3320L Agricultural Knapsack Sprayer1. Capacity: 20L, 5 Gallon2. Lance: Plastic/Stainless steel lance as you ... of nozzle and lances.The economical and labor saving friend.20L Agricultural Knapsack Sprayer Packing4pcs packed in on carton, 170 ... in one carton, 700 cartons packed in 1*20ft container.20L Agricultural Knapsack Sprayer QualityChemically resistant, piston pump, padded shoulder ...