RAXIAL S4 Inline Booster Duct Fan 4 Inch With Speed Controller For Basements, Bathrooms, Kitchens, And Workshops Low Noise HVAC Blower For Attics And General Ventilation

4-Inch Inline Booster Duct Fan with Speed Controller
✔️ 106 CFM, 28 dBA, 4in duct, dual ball bearings, black, single unit

This inline booster duct fan is a compact 4-inch unit designed to boost airflow in HVAC ducts and ventilate spaces like basements, bathrooms, kitchens, attics, and workshops. It mounts inline in duct runs to increase air exchange and reduce stagnation in tight spaces.

✅ Duct size: 4 inches
✅ Airflow: 106 CFM
✅ Noise: 28 dBA
✅ Unibody die-cast construction reduces vibration
✅ AC shaded-pole induction motor with balanced blades
✅ Dual ball bearings for smooth operation
✅ Dimensions: 7.28 x 3.95 x 3.95 in
✅ Couleur : noir

💡 What is an inline booster duct fan used for in home ventilation systems?

Handy device for improving airflow in duct runs and boosting ventilation in tight spaces. - Improves airflow in ducts - Helps ventilate basements, attics, bathrooms - Works with existing HVAC setups to add air changes - Includes a speed controller to tune airflow and noise