Low Noise Level: 4 inch inline fan extremely low noise(28 dB). Powerful Motor is a more energy-efficient operation. Moves air through your target location efficiently for optimal ventilation.
Effective Ventilation Kit: 4" Inline duct Fan is rated for max 205CFM with Intelligent temperature humidity controller programming, fan speed control, timer, and alarm system.
Durable Material: Flexible ducting made of high-quality double-layer Aluminum film, Prevent the duct from tearing, prolong the service life.
Convenient Installation: Built-in steel wire spiral structure, 360-degree arbitrary bending, smooth exhaust, easy to install.
Applications: Ideal for air intake and exhaust in greenhouses and grow rooms/tents, as well as other systems that require ventilation.