The Mars Hydro 4 Inline Fan Carbon Filter Duct Air Filtration Kit with IControl Box is a high-quality air filtration system designed for hydroponics setups and outdoor use. The kit includes an activated carbon filter with a filter life of 24 months, capable of capturing odors and contaminants. The compact design, measuring 4 inches in length, depth, and width, makes it easy to install in exhaust fan applications. The black color and sleek design add a stylish touch to your home or garden. Perfect for maintaining clean and fresh air in your environment.

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