312867H/U externally-mounted linkage kits are designed for use with MP516 and MP909D/E/H pneumatic damper actuators.

315321G/U crank arm and linkage kits are designed for use with MP909A and MP909D damper actuators.

Q605 damper linkages connect Modutrol motors to a standard damper (or dampers) to control the flow of air through ducts. The various models permit the motor to be mounted inside or outside the duct, and on either side of the damper.