1) Tank Capacity: 20L 2) With brass lance and adjustable nozzle G.W./N.W.: 5.0KG/4.7KG 20L KNAPSACK SPRAYER- Rated tank capacity: 20 L- Working pressure: 2.0 - 4.0 kgs/cm2 Air chamber capacity: 1.0L- Spray flow: 600 - 1000ml/min- Main material: PP, PE, brass- Brass air pump, Brass handle switch, brass lance, plastic nozzle- Individual: 5.0kgs, 420x215x590mm, packed by carton.