The Echo SHR170 SI is a lightweight backpack sprayer designed for a variety of spraying applications. Powered by a 21.2cc two stroke low emission engine, complete with the i-Start instant starting system, & carried by a comfortable harness, the Echo SHR-170SI has a strong but light weight frame & is designed for large scale spraying tasks. The pump means there is no need to continually hand pump the sprayer. The sprayer has a comfortable backpack pad which can be easily removed for maintenance. Specifications: Power: 21.2cc 2 stroke petrol Output: 0.6k W Tank Capacity: 17 litres Dry Weight: 5.8kg