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4 Inch Inline Fan

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  1. US$69.99

    Mars Hydro inline fans are designed to ventilate hydroponic grow rooms, exhaust odors, and transfer heating/cooling air in terms of planting needs.

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  2. US$149.99

    Refreshing Your Grow Room: Mars Hydro inline fan and filter kits are designed to quietly ventilate indoor grow rooms/tents, to transfer heating/cooling air in and out, and eliminate odors.

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  3. MARS HYDRO 4 Inch Inline Duct Fan with Thermostat Controller
    SKU: Mars-4Inlinefan-CP
    US$99.99

    Mars Hydro 4'' Inline Fan uses a mixed-flow design to maintain peak performance in a high static pressure environment.

    [Digital Controller Version]

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  4. US$109.99

    Enjoy peak ventilation experience with Mars Hydro Inline Fan & Carbon Filter Combo

    • Package Include: 4"inline duct fan with speed controller, 4" carbon filter, 33ft length flex ducting,3 Duct Clamps

    Only the Canadian version is different in color and has the same devices and functions

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