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.