Enhance your ventilation system with this high-performance Inline Booster Duct Fan, designed for efficient airflow and quiet operation. Built with a strong pure copper motor featuring permanently lubricated bearings, this fan ensures stable, powerful performance with minimal maintenance. Its sturdy metal housing and unibody die-cast construction reduce vibration and deliver smooth, consistent airflow, making it a reliable choice for various ventilation needs. Key Features: · Powerful Pure Copper Motor: Equipped with a durable motor and permanently lubricated bearings, providing stable operation and long-lasting performance without the need for complicated maintenance. · Sturdy Metal Construction: The solid metal housing with unibody die-cast design eliminates welded seams, reducing vibration and enhancing durability for extended service life. · Compact and Efficient Design: Available in a 4-inch size with dimensions of 97 x 72 mm (3.82 x 2.83 inches) and weighing only 500g (17.64oz), this lightweight fan fits easily into tight spaces while delivering strong airflow. · High Airflow and Speed: Operating at 2800 RPM, it generates an airflow of 174 CFM, effectively boosting ventilation in various environments. · Low Noise Operation: Features a superior balanced centrifugal impeller that ensures quiet performance below 50 dB, making it ideal for work and living spaces without causing disturbance. · Versatile Applications: Perfect for use in kitchens, bathrooms, hotels, workshops, basements, attics, and HVAC systems to enhance airflow. Also suitable for grow rooms as an intake or exhaust fan. Specifications: · Type: 4 Inch · Material: Metal · Color: Black · Item Size: 97 x 72 mm (3.82 x 2.83 in) · Item Weight: 500g (17.64 oz) · Speed: 2800 RPM · Airflow: 174 CFM · Noise Level: < 50 dB Package Includes: · 1 x Inline Booster Duct Fan This Inline Booster Duct Fan combines compact size, durable construction, and quiet operation to provide an efficient ventilation solution suitable for a wide range of indoor applications. Improve air circulation and maintain a comfortable environment with this reliable and easy-to-install duct fan.