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Mars Hydro 4 Inch Inline Duct Fan With Speed Controller

$119.99
Fan/Filter/Duct Size: 4 Inch Airflow: 205CFM Noise: 26.8dB-A Controller Type: Speed Controller
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Mars Hydro 4 inch Inline Duct Fan with Thermostat Controller

$159.99
  • Fan/Filter/Duct Size: 4 Inch
  • Airflow: 205CFM
  • Noise: 26.8dB-A
  • Controller Type: Digital Thermostat Controller
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Mars Hydro 6 inch Inline Duct Fan with Thermostat Controller

$189.99
  • Fan/Filter/Duct Size: 6 Inch
  • Airflow: 402CFM
  • Noise: 32dB-A
  • Controller Type: Digital Thermostat Controller
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Mars Hydro iFresh 4-inch Inline Duct Fan

$129.99
Fan/Duct/Filter Size: 4 Inch Airflow: 205CFM Noise: 26.8dBA Controller Type: Speed Controller & APP Smart Control*

*Important Note: To enable App control features, the additional purchase of the 2025 iFresh MarsPro Add-On Pack (sold separately) is required. Click here to purchase>>

The 2025 Mars Hydro 4" iFresh Inline Duct Fan delivers 205CFM airflow capacity, featuring an expansion port that enables app-based climate control when paired with the iFresh MarsPro Add-On Pack. This integration creates a fully automated ventilation system that intelligently monitors and optimizes your grow space environmental data.
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