Carbon Inline Fan Filter & Odor Control, 4"x12" | Part # GLFILT4M

$ 40.99 & Free Shipping!

I love my indoor hydroponics garden but my daughter being allergic to the smell that it emits is one of the reasons why I am thinking that maybe I should take it down. I am a bit sad with this thought until another hobbyist friend told me about the inline fan filter. Good thing I haven't started dismantling my hydroponics garden. Whew!

Have you noticed that your plants started to give of a more... noticeable smell? When your inline fans and duct filters are no longer eliminating odors it's time to change your filters! Our think Crucial Carbon Inline Fan Filters & Odor control was designed to efficiently filter out odors, pollen, and other unwanted air pollutants. These professional grade filters are essential for your inline/duct fans in indoor grow rooms, allergen filled rooms, or even keeping rooms cool.

Experience WORRY-FREE performance as the filters were designed to gently pull air and eliminate all odors. Don't breathe unfiltered circulated air -- your lungs deserve better.

These filters last up to 1.5 years while depending on usage and has a CFM rating of 200 which is efficient in air pull to ensure the filters can work away the odorous, unfiltered air and breathe out clean air. Perfect air speed for delicate plants that emit odors.


This is a replacement for:

  • Part # GLFILT4M


Designed to fit:

  • 4" x 12" fans

When will my order ship?

Our warehouse ships Monday-Friday. If you place your order before 12pm EST, your order will ship out that same day. Orders placed after 12pm EST will ship the following weekday.

What is your return policy?

We want you to love what your ordered and we are confident that our products and service will help you live a healthier life. If something isn't right give us a call at 877.750.9239, 9am - 5pm (EST) Monday - Friday, or email us at If you are not 100% satisfied with your purchase, you can return it for a full refund (returns must be unused, in original packaging and within 30 days of your order date).

How can I track my order?

Thank you for your recent purchase with Think Crucial. When your order ships, you should receive an email with your tracking information. Please check your spam folder if you have not received it. Please feel free to contact us for further information regarding your order. Most of our packages are shipped using DHL Global Mail. DHL Global Mail's tracking information usually start with 92 and include 26 numbers. Our international orders are also shipped using DHL Global Mail, tracking numbers starting with GM. DHL Global Mail packages are transferred to USPS for the final mile delivery. Click here to for up-to-date information regarding your package's location. We also use USPS, UPS and Fedex to ship out our orders. Tracking information can be found on each companies respective website.
- USPS's tracking number usually starts with 94 and include 22 numbers.
- UPS tracking numbers usually start with 1Z and continue with 15 additional numbers.
- Fedex tracking numbers start with either 61 and include 20 numbers or 59 and include 15 numbers.

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