Active Grow LED

Active Grow LED Walden White Grow Tent 4" Ventilation Kit – 188 CFM Inline Fan, Carbon Filter, Ducting & Hydroponic Hangers

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Active Grow LED Walden White Grow Tent 4" Ventilation Kit – 188 CFM Inline Fan, Carbon Filter, Ducting & Hydroponic Hangers

The 4” Ventilation Kit comes with everything you need to easily setup a clean and healthy growing environment right out of the box including a 4″ Inline Fan, 4″ Carbon Exhaust/Intake Filter with pre-filter, 25′ of 4″ Aluminum Ducting, three 4″ Ducting Clamps and four 1/8″ Hydroponic Hangers.

AG/4INFAN/KIT Features

Get Growing

Combine the 4” Ventilation Kit with an Active Grow Walden Grow Tent and LED fixture and get growing today!

Smooth Operator

The powerful inline fan provides efficient and quiet 188 CFM airflow at 2400 RPM and <31 dB and comes with a corded multi-speed controller that allows growers to manually adjust the fan speed.

Maintain a Healthy Grow Space

The carbon filter removes odor, spores, pollen, chemical irritants and other harmful airborne particles from the air to help keep your plants healthy and your grow space clean. The pre-filter is machine washable to extend the lifetime of the filter.

Custom Configurations

The versatile inline fan, carbon filter and ducting can be configured to work in both open and closed loop ventilation systems. The fully adjustable and auto-locking hydroponic hangers can support up to 150 lbs/pair.


4” Inline Fan

  • 60W / 120V
  • 188 CFM / 2400 RPM
  • Corded multi-speed controller
  • Silent operation <31 dB
  • 4” aperture – 11.6”(l) x 8”(w) x 7.7”(h)
  • 1-year warranty

4” Carbon Exhaust/Intake Filter

  • Removes odor, spores, pollen, chemical irritants and other airborne particles
  • Machine-washable pre-filter (1pc)
  • Recommended airflow 150-200 CFM
  • 4” aperture 2” flange – 8”(d) x 12”(l)

4” Ducting & Clamps

  • High-quality flexible aluminum
  • Corrosion & heat resistant
  • Reinforced steel-wire design
  • Stainless steel 4” ducting clamps (3pcs)
  • 4”(d) x 25’(l)

6’ Hydroponic Hangers

  • Heavy duty 1/8” braided rope with carabiner and ratchet (4pcs)
  • Fully adjustable and auto locking
  • Supports up to 150 lbs/pair
  • Designed to hang lighting, fan, filter, etc.


    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

    Active Grow LED Warranty Policy

    • Lamps 1-year limited warranty @18h/day 
    • Fixtures / Integrated Luminaires 3-year limited warranty @18h/day 
    • LoPro Series / SG Series Luminaires 5-year limited warranty @18h/day
    • Walden Grow Tents 2-year limited warranty @18h/day
    • Inline Fans 1-year limited warranty

    Active Grow LED Return Policy

    All of our Acitve Grow LED products come with a 30-day satisfaction guarantee. Any item may be returned within 30 days of purchase for any reason.

    Please note the customer is responsible for return shipping costs when returning any item other than defective, incorrect or damaged ones. Depending on the type of return, restocking fees may apply.

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