... Range (m) :over 12m Engine model: 1E40FP-3ZKnapsack power mist duster is suitable for using prevention of plant diseases and controlling ... granular chemicals, etc.Knapsack Power Mist Duster,light weight corrosion resistance,comfortable to backpack,high efficiency. Knapsack Power Mist DusterProduct Name: Knapsack sprayer Product Model: ... *73cmPacking quantity: 167pcs/20" FCL 417pcs/40" HQ mist duster