Double piston is easy to operate, save labor and time.
4 Gallon (16L) Double-piston Knapsack Sprayer for Lawn and Garden
Capacity: 4 Gallon (16L)
Material: PP Tank
Lance: Fiberglass or Metal (Optional)
Category: Manual Sprayer Tags: 4 gallon sprayer, backpack sprayer, hand sprayer, knapsack sprayer, manual sprayer, plastic sprayer, sprayer for lawn and garden, water sprayer