Echo SRM2320TDescription: A popular choice for pros tackling one jobsite after another, the high torque SRM 2320T straight shaft string trimmer increases productivity while decreasing fatigue. With a 2: 1 gear ratio, it delivers 28% more torque than the SRM 225, making quick work of overgrown grasses. Top Features: 2: 1 high torque gear ratio to power through tough overgrown grass and weeds Two stage air filtration system dramatically increases cleaning capability