Neptune Knapsack Garden Power Sprayer with 2 Stroke Engine NF-708 (20 L) NF-708 Neptune NF-708 Backpack Sprayer is the perfect tool for applying pesticides for pest control, agriculture, and row crop farming. Boasting a power of 435 psi, it is designed to operate smoothly. It features a powerful 1.0 HP lightweight engine and 2-triple ...flat-jet wands/nozzles, helping to reduce the amount of chemical fluid used. Tough and durable, NF-708 Backpack Sprayer is made by utilizing brass and copper to endure rust and wear. Besides, it is engineered for lower vibration with cushioned shoulder straps to ensure better operator comfort than ever. Features: Adjustable wands/nozzles. Lower vibration for even chemical flow. 2 stroke & 4 stroke Feature 2-Stroke Power Sprayer 4-Stroke Power Sprayer Fuel Used Petrol mixed with 2T oil Only petrol (20W-40 oil separate add) Maintenance Higher maintenance required Low maintenance Fuel Efficiency Less fuel efficient More fuel efficient Noise Level More noise Less noise, smoother running Starting Easy and quick start Smooth and stable start Weight Lighter in weight Slightly heavier Power Output High power for short duration work Consistent power for long duration work Operating Cost Higher running cost Lower running cost Best Usage Small farms, occasional use Large farms, regular & professional use