Mars Hydro 4 Inch Inline Duct Fan And Carbon Filter Combo With Thermostat Controller

Mars HydroSKU: Mars-4Filterkits-CP

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Sale price$169.99

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Mars Hydro 4 Inch Inline Duct Fan And Carbon Filter Combo With Thermostat Controller

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

Mars-4Filterkits-CP Features

  • Kits Include: 4'' Inline Duct Fan / 4'' Carbon Filter / Thermostat Controller/ Flex Ducting / Duct Clamps
  • Quiet Operation and Powerful Ventilation: With a PWM-controlled motor and mixed-flow design, the Mars Hydro 4'' inline fan delivers airflow up to 205 CFM and operates quietly
  • Keeps the Air Fresh: The filter core is made of activated carbon imported from Australia, bringing 100% fresh air into the grow room and eliminating bad odors, harsh tastes, and particles.
  • Intelligent Control: High/low temperature/humidity sensor will automatically alert by sensor probe. Controller lockout feature to prevent accidental triggering. Automatic control of fan on/off and speed to achieve TEMP/HMD settings.
  • Duct Size: 4’’ | Filter Size: 4’’ | Airflow: 205 CFM | Noise: 26 dBA | Duct Length: 33FT


NOISE 26.8dB-A
VOLTAGE AC ~ 110-240V
DIMENSION 303mm*202mm*190mm


    We offer standard free shipping within the Continental US. Free shipping to the lower 48 usually takes between 3 to 5 business days but you should allow 3 to 10 business days depending on carrier used and delivery location.

    Order Confirmation:
    As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available, we will process the charges and submit the order for shipment.

    Order Shipment:
    If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

    We work extremely hard to ensure that our customers receive the absolute best prices online. If you find another online store that offers a lower price than within 90 days of your purchase date, please let us know and we will happily refund your original payment for the difference.  

    We want you to feel confident that you are getting the absolute best price.  If you find that our own website has a lower price for the same item you have ordered within 90 days of your purchase date we will refund the difference as well.

    To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within 90 days from the date of your order and we will process the credit accordingly.

    Our 100% Price Guarantee has some limitations:

    • You must purchase the item from our website before requesting your Price Match Guarantee
    • Promotions such as coupons, rebates, and buy one, get one free offers are not eligible
    • The item must be in stock on the competitors website
    • The competitor must be an online store, they may not have a retail location
    • The website can not be a discounter or auction website (ie; eBay, Overstock, etc..)
    • The competitor must be an Authorized Retailer of the product in question
    • The Price Guarantee includes the item price and the shipping charges, it excludes sales tax

    Mars Hydro Warranty

    All inline duct fans are covered by a two (2) year full-cover warranty.

    Mars Hydro Return Policy

    -Mars Hydro Grow Tents and Grow Kits are FINAL-SALE items, once received, no return service would be provided. Therefore, if any defects, please contact us within 48 hours upon arrival of items, we’ll offer help.

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