Premier 774-4 knapsack power sprayer 4-stroke engine.

Core Specifications

• Model: Premier 774-4

• Engine Type: 4-Stroke, Single Cylinder, Air-cooled Petrol Engine (~35.8cc, 1.4 HP)

• Tank Capacity: 25 Liters (Heavy-duty HDPE chemical tank)

• Fuel Type: Pure Unleaded Petrol (No 2T oil mixing required in the fuel tank)

• Engine Oil Type: Separate oil sump (typically uses standard SAE 20W-40 or 10W-30 4-stroke engine oil)

• Pump System: High-pressure duplex plunger pump (brass/aluminum construction for corrosion resistance)

• Liquid Discharge Output: ~8 Liters per minute

• Operating Pressure: 15 to 25 kg/cm² (creates a highly uniform, penetrating micro-spray)