Manual Backpack Sprayer Cost-effective and always ready to go, Durable and Lightweight. How to assemble Sprayer Steps of Assemble for Manual Use Assemble the Manual Knapsack Sprayer step-by-step: 1. Take out and check the accessories inside the tank. 2. Install a Manual Air Pump and attach the handle, rod, and nozzle. Don’t forget the gasket. 3. Install the strap, cover, and other components.
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