Perhaps the most attractive features of the Lehr Eco Trimmer & Blower ($180-$210) is the fact that it uses more efficient and saferĀ  Twist 'n Go propane canister that's both economical and eco-friendly. These powerful trimmer and blower are equipped with four-stoke IC engine with no choke or priming start-up, and can run up to 2 hours off a single canister.