Manual Knapsack Sprayer

Durable Construction: The tanks are typically made from UV and chemical-resistant plastic (such as HDPE) to ensure longevity and prevent corrosion from agricultural chemicals. ​Adjustable Nozzle and Lance: Most 20L sprayers come with an adjustable nozzle that can be changed to produce different spray patterns, from a fine mist for insecticides to a concentrated jet stream for targeting weeds. The lance or wand allows the user to reach tall plants or difficult-to-access areas.