Model PM767-4 Knapsack Power Sprayer is a heavy-duty, motorized agricultural backpack sprayer designed for large-scale crop protection, pest control, and liquid fertilization. It is highly favored by farmers due to its fuel efficiency, smooth low-vibration operation, and consistent high-pressure performance.Key Technical SpecificationsEngine Type: 4-Stroke, air-cooled petrol engine (Model 139F), eliminating the need to mix oil with petrol.Engine Power: 1.4 Horsepower with a 31 cc displacement volume.