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Mars Hydro 4" Inline Duct Fan with Speed Controller

Mars Hydro

3 total reviews

Regular price
Price: $79.99 USD
Regular price
List Price: $0.00 USD
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Price: $79.99 USD
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Availability: Only 3 in stock

Estimated Arrival: Between May 24 and May 29.

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Why Buy From Grow Tents Depot
  • 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 latches for speedy disassembly and convenient maintenance. Further, its 4.9-foot cord length facilitates diverse installations as per your preference.
  • Basic Parameters: Exhaust Fan Size: 4'' | Dimensions: Approximately 11.93" x 7.95" x 7.48". | Weight: Approximately 3.75 lbs. | Airflow: 205 CFM | Noise: 26.8dB-A.
  • Specifications
  • Fan Size: 4''
  • Airflow: 205 CFM
  • RPM: 2600 RPM
  • Noise: 26.8 dB-A
  • Voltage: AC ~ 110-240V
  • Dimension: 303mm x 202mm x 190mm
  • Data Sheets
  • Download the product manual: here
  • Price Match Guarantee
  • Shop safe knowing that Grow Tents Depot offers the lowest prices on all of our products - all the time - guaranteed!
  • We work very hard to ensure that we always have the absolute best prices online, so we make this guarantee knowing that if you find a lower price somewhere else, we will match or even beat our competitor's price! Simply reach out to us with a screenshot and link of our competitor's price (including shipping) and let us make you an offer! If you have already purchased with us and you find a better price within one week of your order, let us know and we will issue a refund for the difference!
  • Our 100% price match guarantee has some limitations:
  • -Promotions such as rebates, "buy one, get one free", and other discounts are not eligible.
  • -The item must be in stock on the competitors website when you request your price match.
  • -The competitor must be an online store and may not have a retail location.
  • -The website cannot be a discounter or auction website (e.g. Amazon, eBay, Overstock, etc.).
  • -The competitor must be an authorized retailer of the product in question.
  • -The price match applies to the item price and the shipping charges but excludes sales tax.
  • -On rare occasions, we reserve the right to refuse a price match if we would incur a loss.
  • Get growing today!
  • Shipping, Returns, and Cancellations
  • Order Confirmation:
  • As soon as your order is placed, an order confirmation e-mail will be sent to you. This means that your order has been successfully entered into our system and that we have pre-authorized your payment method for the purchase. In rare cases, if your product is unavailable or delayed, we will contact you and see if you would like to either wait for your item(s) to become available, change your order, or simply be refunded for your cancelled item(s). If your item(s) are immediately available, we will process your order and arrange for soonest possible shipment. Please note that once the order is processed we are unable to change the shipping address.
  • Order Shipment:
  • We offer FREE SHIPPING on all orders and currently service the lower 48 states. Most items are shipped within 1 to 3 business days and shipping time is typically between 1 to 7 business days. There are some products that have a slightly longer lead time and this will be indicated on the individual product pages if applicable. Once your order has shipped, we will send you the tracking information as soon as it becomes available. If a week or more has gone by and you still have not received the tracking information (or the number is not working), please reach out to us right away at If you are in Alaska, Hawaii, or outside of the US and would like to place an order: we may be able to ship to you, but you will need to reach out to us for a custom shipping quote.
  • Cancellations and Refunds:
  • If you need to cancel your order, please reach out to us as soon as possible. Cancelled orders are subject to a 5% administrative fee (for credit card, debit card, Amazon Pay, Coinbase, and Facebook orders) or an 8% administrative fee (for Shop Pay Installments and Sezzle orders). We can accommodate most cancellation and refund requests, however if a product has been arranged to ship or has shipped, then the item will be treated as a return and will potentially be subject to return shipping costs and restocking fees. Any refunds that may be issued will only be issued to the original payment method used when placing your order and only after the return has been confirmed to be received back in its original condition.
  • Returns:
  • Please see our full return policy at the footer of this page for brand-specific details. A restocking fee of 5-25% may apply on returns within the dates of the brand-specific return policies. If you would like to proceed with a return, please reach out to us to receive the precise return instructions and clarification on the restocking fees for your item(s).
  • Warranty
  • Grow Tents Depot only sells brand new products, never used, and therefore all items come with full manufacturer warranties if offered. Please note that Grow Tents Depot is not responsible for replacing or repairing your product while under warranty as this is the manufacturer's commitment to you. However, Grow Tents Depot would be happy to assist you in getting your product repaired or replaced by coordinating with the manufacturer.
  • If you would like us to assist with a warranty claim, please reach out to support with the following information:
  • Your order number.
  • Your shipping address.
  • A brief description of the issue.
  • Any photos or videos demonstrating the issue.

  • Customer Reviews

    Based on 3 reviews
    Fan performance

    Other then having to chase my package down, because of lack of mot putting all the needed info down. Like my unit number. This inline fan does the job needed to Ventilation the area. I recommend this product. I will purchase more inline fans in the future!!!!

    Quality products and great service

    I bought this fan but it seemed like it had an issue to me. I contacted Mars Hydro and they were very responsive. I own several Mars Hydro LED lights that work very well. Mars rectified the situation with this order immediately. I'll continue to buy Mars Hydro products because they stand behind their products and make sure that the customer is always happy.

    Nice gear!

    Most fans are either a metal or black design which may look clunky or out of place in your garden set up. This model has a nice color and design that will help compliment your garden setup rather than create an eyesore.

    The adjustable feature of the fan is also unique in that it can be removed so that the fan will operate at full speed upon receiving power. The adjustable range of the fan is also much more finely tunable than other similar models. This is most helpful when you would like the fan on but at a very low speed.