Mars Hydro 4" Inline Duct Fan with Speed Controller Environmental Controllers Worm castings are a natural

Worm castings are a natural byproduct of vermiculture (composting with worms) used as a fertilizer and soil amendment

PRO-MIX PUR™ inoculants are designed to deliver proven results and are OMRI-Listed for organic growing

Automating Your Feed: Enhance your system by integrating a Barbed Insert to automate your feed into a top-feeding drip system

Please note: Samsung LM301H LEDs are no longer available in this model

Mars Hydro 4" Inline Duct Fan with Speed Controller Environmental Controllers Worm castings are a naturalDescription Efficient Ventilation: The Mars Hydro 4" inline fan employs a mixed flow design for a strong airflow of 205CFM. It's equipped with a variable speed controller for effortless fan speed management. Quiet Workspace and Durable Body: With an ABS plastic frame and blades, this sturdy fan creates a remarkably quiet growth environment with an extremely low noise level of 26. 8dB A. Easy Installation: This fan features removable duct ends with