Image shows an AM767-4 Astramilano Knapsack Petrol Engine Sprayer.
Here's some information about this sprayer:
Engine Type: It features a 4-stroke engine designed for efficient fuel consumption and reduced emissions.
Capacity: It has a 25L solution tank capacity, suitable for large-scale spraying tasks.
Design: The knapsack design is ergonomic and comfortable, allowing for prolonged use without fatigue.