The Echo SRM-520ES/U is designed to tackle the largest scale commercial jobs. That's why it features a huge 50.2cm³ engine, a heavy-duty air filter and an advanced vibration reduction system. Whether you're working with a trimmer head or blade, you can depend on its power to get through the job with ease. The Echo SRM-520ES/U features an incredibly powerful 50.2cm³ professional grade engine for serious clearing power. A super anti vibration feature that utilises a 4-point mounting system ensures low vibrations so you can power through jobs in comfort. Featuring Echo's patented ES start technology for easy starting every time and a heavy-duty air filter to protect against dust and debris. Every feature has been carefully crafted to reduce downtime and get you from one job to the next, hassle free. ES-Start Start Assist System Heavy-duty Air Filter Super anti-vibration system for reduced vibration Solid Driveshaft type U Handle 3-cutter Standardised Metal Blade 50.2cc Engine displacement 2.16kW Output 0.69 Litres Fuel tank capacity 1.23 L/h Fuel Consumption at Maximum Engine Power 8.0mm Drive shaft diameter 28.0mm Main pipe diameter 9.0 kg Dry Weight 1.33 Gear reduction ratio