ECHO PB-5810 Backpack Blower The ECHO PB-5810 Backpack Blower uses next-generation engine technology. It is intended for light mowing cleanups by homeowners and professional landscapers dealing with wet, heavy leaves. Features Has a 59.7 cc professional-grade, two-stroke engine for superior performance and durability Has Posiloc™ pipes to ensure a secure connection and maximum durability Its 44% reduction in starting effort leads to less pulling force Has 700 CFM, 200 MPH, and 27 N of blowing power, which increases productivity Features a leaf guard that keeps debris out of the fan intake Its exclusively vented back pad provides cooling air that circulates around the user to keep them comfortable in hot weather The pleated, automotive-style air filter ensures superior air filtration and extends engine life Has a variable-speed throttle with cruise control that allows the user to lock the throttle at various settings Has a padded backrest with shoulder straps to ensure operator comfort Available with either a tube throttle or a hip throttle