20L knapsack sprayer with copper lance 1)Materials: PE tank, PVC hose and nylon carrying strap 2)Copperlance 3)Different lances, switches, and nozzles are available(optional) 4)Customized design and printing are accepted 5)Pressure:0.2-0.3Mpa 6)Capacity: 20L 7)N/W:4.2kg 8)Packing:1pc/ctn 9)Size:39*19*52cm