Room to Room Fan with Remote Control, 300CFM Wall Vent Fan with Temperature C…
The air duct opening size of the vent fan is 13.8″L X 5.8″H. The thickness is adjustable to fit walls with a thickness of 3.8”-7.4.”. Comfort setting: The RTR300-CV ventilation fan is equipped with a temperature sensor that allows you to select a temperature range of 35°F to 99°F, ensuring customized airflow for year-round comfort.