Raxial S4, Inline Booster Duct Fan w/ Speed Controller, 4-Inch Lighting Battery type: 1 x AAA

Battery type: 1 x AAA alkaline

Two per pack

and optional fully integrated carbon filtration and air circulation to create the perfect optimized environment to achieve faster

and corners

Unit is powered by a rechargeable battery

Raxial S4, Inline Booster Duct Fan w/ Speed Controller, 4-Inch Lighting Battery type: 1 x AAAA duct fan designed to boost airflow in HVAC systems and ventilate home spaces like attics and workshops. Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application. Unibody die cast construction with no welded seams; reduces vibration while ensuring smoother airflow. AC induction motor with steel blades and lubricated bearings; not suitable in restricted airflow applications. Duct size: 4