Swisher E4-HT4000 Shindaiwa E4 24.5cc 4-Stroke Engine Commercial Grade Articulated Hedge Trimmer 24.5cc E4 Hybrid Engine produces 1.15 HP and gives the power and torque of a 4-stroke engine while having the light weight and all position operation of a 2-stroke. Fuels like a 2-stroke, using a 50:1 mix, but remains up to 25-Percent more fuel efficient than similar displacement 2-stroke engines. 20 fl-Ounce fuel tank. Patented Power Boost Chamber supercharges the engine to give it even more power and torque. 2 ring piston and cylinder is chrome plated for durability and longevity. Articulating Trimmer Head allows easy access to hard to trim places such as the top of tall shrubs. Provides for a variety of cutting options. Non-CARB Compliant/Not For Sale In California