The EVERLOCK™ is a new self-locking damper handle. According to the company, until now, balancing technicians needed a tool to unlock a damper handle, adjust airflow, and to tighten the bolt again. Over and over. The EVERLOCK is designed to eliminates tools. Simply push the thumb trigger and move the handle; then release and it automatically locks into place. Also, the EVERLOCK is said to provide an absolute lock, unlike friction locks which vibrate loose over time.
Rossi HVAC Hardware, 9315 Borden Ave., Sun Valley, CA 91352; 818-252-3811; 818-252-3812 (fax); info@RossiHardware.com; www.RossiHardware.com