Search  for anything...
Hon&Guan

Hon&Guan 4" Air Filtration Kit: 4 Inch Inline Duct Fan with Speed Controller, 10" High Carbon Filter, 8 Ft Ducting & Rubber Coupler, Ventilation System for Grow Tents, Indoor Gardening, Hydroponics

    • Based on 41 reviews
Condition: New
Checking for product changes
$79.99 Why this price?
Save $70.00 was $149.99

Buy Now, Pay Later

As low as $13.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, May 7
Order within 6 hours and 7 minutes
Available payment plans shown during checkout

Size: 4 Inch


Features

  • Efficient Ventilation System Kit: Includes Hon&Guan 4" inline duct fan, Speed Controller, 10" High Carbon Filter & 8 Ft Ducting. Its the ideal choice for moving and circulating air in various ventilation projects; easily and precisely control fan speed and airflow to stabilize and optimize your growing environment
  • Low Noise & Energy-Saving: Hon&Guan inline duct fan ensures powerful performance with airflow at 130 CFM at a low noise level of 26dB, ventilates quietly and won't disrupt your work or life.
  • Effective Odor Control: Utilizes RC 48 lightweight activated carbon with 1200+ IAV and a 38mm thick charcoal bed for higher absorption. Helps eliminate unpleasant odors
  • 3-Layer Tough: Hon&Guan dryer exhaust hose keep your ventilation system free of rips and pin holes. The dryer duct is built with 2 layers of aluminum foil with a layer of PET and steel wire helix to preserve the shape, keep your ventilation system free of rips and pin holes
  • Versatile Applications: Hon&Guan ventilation system is designed for ventilation in hydroponic grow rooms, heating/cooling transfer, temperature and humidity regulation, and odor removal. It effectively improves air circulation in grow tents, hydroponic grow rooms, electronic equipment rooms, closets, kitchens, bathrooms, basements, and more

Product Dimensions: 7.28 x 3.82 x 3.82 inches


Item Weight: 7.24 pounds


Item model number: a808bd59-3f34-4eba-b04b-91e772b7da17


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • 4 Inch Inline Fan
Size: 4 Inch
So far I’m incredibly impressed. I bought this to use in my grow tent for plants. Other brands like AC Infinity and VIVOSUN charge a ton for their inline fans with filters, and this works great for my 4x2 tent. I talked to a fellow grower who claims to have been using his fan for going on 8 years now! It is a bit loud but I don’t care. Haven’t reached the flowering stage so I can’t say for the smell there but it came with 2 charcoal filter sleeves and I can’t smell it when I feed my plants. It’s made out of plastic but it’s solid and looks good. ... show more
Reviewed in the United States on January 31, 2025 by BonerChamp
    • So glad I found this cuz I had a limited budget
Size: 4 Inch
Review Image by Brian Phelps Brian Phelps
Review Image by Brian Phelps Brian Phelps
The media could not be loaded. Been running it for a week now and so far so good. I love how compact the fan is and it came with a good size carbon filter so it’s less air resistance on the small 6w 4” fan. Super quiet too, you can barely hear it when you’re just around the corner (see, or should I say hear video). The 130 cfm rating on the fan seems to be plenty for my little 2’x3’x5’ tent cuz it’s workin like a champ so far at half speed, and still quiet at full speed. Great value and easy functionality with the speed dial. Fan is mostly plastic but sturdy. Only complaint is the ducting is a little smaller than the end of the fan it goes onto, so I really had to twist it to open it up enough to wiggle it on there but no big deal. Would still buy again, no reason to spend more. ... show more
Reviewed in the United States on February 13, 2025 by Brian Phelps Brian Phelps
    • Pretty good kit
Size: 6 Inch
Works well. Came packaged professionally. My only gripe is the fan feels very cheap. Light as a feather and the plastic is thin but it does blow well.
Reviewed in the United States on March 2, 2025 by james
    • Amazing strength and quiet!
Size: 8 Inch
Very simple good strong quiet fan!
Reviewed in the United States on January 7, 2025 by Ryan k
    • Well worth your consideration, big savings, powerful!
Size: 6 Inch
Review Image by Spacey Spacey
Review Image by Spacey Spacey
A very quiet 6" exhaust fan for grow tent with 8' of hose and all hardware is just perfect. The filter element is a big cylinder and well put together. The fan comes with a rheostat to modify your fan speeds, which of course is desirable. There's a pulley system to suspend the blower and exhaust hose smartly above your grow operation in your tent. It went together very easy, and we were literally " blown away" by how well this unit functions, let me say this-it's very powerful and very quiet for the amount of air it's moving! I am currently " gathering" all needed items to soon set up a grow tent, so this is another item off the must buy list for me. Judging by the filter canister and filter material and ability to move a LOT of air, smell will not be an issue, and plant health should be great, as well. The parts are go together easy, clearly marked, built to last, amply strong to do it's job, and at an extremely affordable price point. " On your mark, get set, GROW! " ... show more
Reviewed in the United States on February 12, 2025 by Spacey Spacey
    • Quiet and moves air
Size: 6 Inch
CONS: None. PROS: Quiet. Airflow. Additional Thoughts: I am a mealworm farmer and when sifting, it causes a lot of frass, sheddings, dust to go airborne. I'm working on a new building for my mealworms and wanted to include some ventilation. I measured the airflow at about 17-18mph which calculates to around 290cfm. I haven't designed my room yet but if I go with a 10'x10' room, this fan can theoretically change out the air in 2.7 minutes. I'm thinking about having a small hood over my workspace to direct some airflow and help this fan suck out all that material out of the air. I have been getting more affected by it and having this fan suck out the irritants should help a lot. LovingTheRetiredLife ... show more
Reviewed in the United States on February 15, 2025 by Amazon Customer
    • While my purpose is different than what it's intended for, it's still working well for me.
Size: 6 Inch
I purchased this product for a use not specifically cited in the product description. Basically, to provide "forced" ventilation & circulation for our small outdoor greenhouse. Of course, since it's currently winter outside & freezing cold, I cannot yet set this up for our greenhouse. Instead, I quickly tested this fan to move heated air between my garage (which has a stand-alone wood burner in it) & a separate room (set up as a work shop) attached to that garage. While there's a service door between my garage & the separate workshop, the air & heat circulation between the two areas is not sufficient. That's where this fan comes in (at least temporarily). I simply have it set up to pull heated garage air near the ceiling & blow it into the workshop area toward the floor. It's not fancy & I don't currently use the filter, but it makes a HUGE difference toward preventing cold air drafts in the workshop & getting some of that heated air into the workshop. The speed control is very much appreciated to ensure it suits my needs. If I need more ventilation & quicker warming, I turn it up. Once the temperature is comfortable and/or I want less moving air, I turn the speed down. Based on how well it works for my alternate use, I can only imagine it will work fine for what it's intended for. Of course, I am leery of proprietary/exclusive filter designs, but I did not check into this one, as I don't intend to use the filter, at least not yet. ... show more
Reviewed in the United States on January 11, 2025 by GreatDrivr
    • Decent product to keep your grow room ventilation needs in check...
Size: 6 Inch
I just received my grow tent today along with this air filtration exchange and system and the integrated unit works as it should. The fan is quiet and the filter has eliminated all outflow odors exiting the tent. As the air is evacuated, any open, unused port on your tent will pull fresh-air into the tent completing the in and out exchange of the required fresh air now pressurized within the tent.. I am really impressed with all of the components and how easily and quickly I was able to set this up and start using. Overall. I recommend this to anyone planning an active, indoor grow. ... show more
Reviewed in the United States on January 22, 2025 by Tall Drummer

Can't find a product?

Find it on Amazon first, then paste the link below.