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The AC Infinity Automatic Duct Fan is a 4-inch inline fan designed to enhance airflow in HVAC ducting systems. It features an automatic activation system that responds to pressure changes, eliminating the need for manual adjustments. With five adjustable speed levels powered by a PWM-controlled EC motor, this fan ensures precise ventilation while maintaining a noise level of just 60 dBA. Its compact dimensions (6.9 x 11.9 x 7.4 in) and dual ball bearings provide durability and versatility for any installation.
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