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The Johnson Controls D-4073-6 Damper Actuator is a highly reliable pneumatic piston device designed for precise damper positioning within HVAC systems, particularly suitable for unit ventilators, VAVs, terminal units, and small ventilating dampers up to 11.7 square feet.
Equipped with a two-way swivel connection, this damper actuator prevents binding and ensures optimal movement and power delivery. It serves as a direct replacement for the D-3073 models and a functional replacement for former D-251 actuators.
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