ECHO PB-7910T Backpack Blower 79.9cc with Tube Mounted Throttle - The ECHO X Series Backpack Blower expands ECHO's lineup of commercial-grade high-performance backpack blowers by providing higher power at a lower price point than competitive models. It features an advanced 79.9cc 2-stroke engine. Its variable-speed, tube mounted throttle with cruise control offers operator convenience. A heavy-duty padded backrest and shoulder straps provide operator comfort. Posi-loc™ pipes allow for a secure connection and maximum durability.