Greenheck has added Model RBD-15 to its line of remote balancing dampers. Constructed of heavy gauge galvanized steel, Model RBD-15 is a multi-blade balancing damper rated for pressure differential up to 4 inch wg. and velocities up to 2,000 fpm. Remote balancing dampers are ideal for applications where it is difficult to gain access to manually adjust the damper for balance and airflow. Available in sizes up to 48 inches in width and height, Model RBD-15 is operated with a hand-held controller from an access point at a diffuser or wall plate. No permanent electrical power is required.