Echo 99944200545 PAS SRM Pro Torque 17" Trimmer Attachment Features: Wide Compatibility: Designed to fit multiple Echo PAS models including PAS-225, PAS-230, PAS-266, PAS-280, PAS-2620, DPAS-2100, and DPAS-2600, ensuring versatility across a range of power heads. Efficient Cutting Swath: The 17-inch cutting swath covers more ground quickly, making trimming jobs faster and more efficient for professional and residential users alike. ECHOmatic® Bump-to-Advance Head: This professional-grade cutting head allows for quick, easy line advancement with a simple bump, reducing downtime and boosting productivity. Tool-Free Attachment: Attaches and detaches easily without the need for tools, providing quick transitions between tasks and hassle-free maintenance. Durable Pro-Torque™ Gear Case: Features a robust professional-grade gear case with a 2:1 gear reduction ratio, delivering higher torque for tougher cutting applications. Convertible Brushcutter Option: Can be upgraded to a brushcutter attachment with an available conversion kit, enhancing versatility for heavy-duty clearing jobs.