SKU: 54312979461

Hydroponic In‑Line Duct Booster Fans 4″, 6″ & 8″ – 90/240/420 CFM High‑Pressure, Low‑Noise

$26.95 $29.95
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Ships within 48 hours · Estimated delivery Sep 16 - Sep 21

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Description

Hydroponic In‑Line Duct Booster Fans 4″, 6″ & 8″ – 90/240/420 CFM High‑Pressure, Low‑NoiseInLine Duct Booster Fans (4, 6 & 8) Boost airflow in any duct run with our durable, quiet, and easytoinstall InLine Booster Fans. Choose from 4, 6, or 8 models to suit your ventilation needsperfect for bathrooms, kitchens, attics, closets, workshops, and more. Each fan features a prewired 1. 6 m 120 V power cord, galvanizedsteel housing, and precisionbalanced impeller for high pressure at low noise. Size SKU Airflow Price 4 3311014 90 CFM $19. 99 EA 6

In‑Line Duct Booster Fans (4″, 6″ & 8″)

Boost airflow in any duct run with our durable, quiet, and easy‑to‑install In‑Line Booster Fans. Choose from 4″, 6″, or 8″ models to suit your ventilation needs—perfect for bathrooms, kitchens, attics, closets, workshops, and more. Each fan features a pre‑wired 1.6 m 120 V power cord, galvanized‑steel housing, and precision‑balanced impeller for high pressure at low noise.

Size SKU Airflow Price
4″ 3311014 90 CFM $19.99 EA
6″ 3311016 240 CFM $25.99 EA
8″ 3311018 420 CFM $29.95 EA



Key Features

  • High‑Pressure Airflow: Up to 420 CFM (8″ model) under restrictive duct conditions

  • Low‑Noise Operation: Precision‑balanced impeller and insulated housing keep sound below 50 dB

  • Durable Construction: Galvanized‑steel casing resists corrosion and wear

  • Plug‑and‑Play Setup: Pre‑wired 1.6 m power cord with standard 120 V plug—no hardwiring needed

  • Versatile Use: Ideal for boosting ventilation in any residential or light‑commercial ductwork


    Feature 4″ Model (3311014) 6″ Model (3311016) 8″ Model (3311018)
    Duct Diameter 4 in (102 mm) 6 in (152 mm) 8 in (203 mm)
    Airflow 90 CFM 240 CFM 420 CFM
    Voltage 120 V / 60 Hz 120 V / 60 Hz 120 V / 60 Hz
    Noise Level < 45 dB < 48 dB < 50 dB
    Housing Galvanized Steel Galvanized Steel Galvanized Steel
    Power Cord 1.6 m Pre‑Wired 1.6 m Pre‑Wired 1.6 m Pre‑Wired
    Mounting Inline, no hardware Inline, no hardware Inline, no hardware
    Weight 2.5 lbs (1.1 kg) 3.2 lbs (1.45 kg) 4.0 lbs (1.8 kg)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54312979461

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4.6 ★★★★★
Based on 8 reviews
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E
Verified Purchase
Ellie Drew
West Palm Beach, US
★★★★★ 4
Doesn’t leak, durable, keeps drinks cold
Color: Sparkling Sherbet, Size: 40 Ounces
Absolutely love this water bottle. I am a water bottle junkie and this one is my favorite. It doesn’t leak and the fact that I can guzzle or sip through a straw is a major plus. It is kind of heavy but it is a big thermos. The only reason I didn’t give five stars is because the bottom doesn’t fit in all cup holder. It keeps my drinks cold all day and is super easy to clean. It is very sturdy and well made. I figured after using for a while, the lid wouldn’t pop open as easy as it did when it was new, but it still does. I also love the lock feature incase the button accidentally gets pressed when I am carrying it around in my bag.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
J
Verified Purchase
Jeff S.
Belleville, US
★★★★★ 5
Compact, incredibly absorbent, and a travel essential.
Color: Gray, Size: 48.00" x 24.00"
The Rainleaf microfiber towel has been a fantastic addition to my gear. It’s remarkably compact and lightweight, which makes it perfect for tossing into a gym bag or packing for trips without taking up unnecessary space. Despite its size, it’s surprisingly super absorbent and dries much faster than a standard cotton towel, which is a huge plus when you're on the move. It’s well-made, feels durable, and is definitely a must-have for anyone who travels, camps, or hits the gym regularly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
C
Verified Purchase
CALI GDOG
New York, US
★★★★★ 5
Great Travel Towel !!
Color: Mint Color, Size: 72.00" x 40.00"
I travel for work. The last few years I've noticed the quality of hotel towels has gone downhill. I suspect that they are not replacing them as often to save money. So not only are hotel towels too small, they are thread bare, thin and scratchy. So I thought about bringing my own towel, but, it's not practical as they are heavy and bulky to pack, and they take a long time to dry. This Rainleaf Microfiber towel is the answer to my prayers. I bought the big one, 70 X 40. I tested it at home. It is kinda strange to dry off with it because it's different. Not bad, just different. It smooth but not soft and fuzzy like a cotton towel. BUT, it dries amazingly well. It doesn't even get that wet. It's more like patting dry then rubbing you dry, it you know what I mean. Once you get used to it, it works great. Even though is it huge at 70" X 40", it weighs less than 1 pound. Super small and great for packing. Corner pocket would be good at the beach for keeping valuables out of sight. It's my new go-to hotel towel. I may even bring it on my cruise !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
T
Verified Purchase
Tomsprincess
Bozeman, US
★★★★★ 5
Dries quickly and very portable
Color: Violet, Size: 72.00" x 40.00"
Dries you off quickly, is light weight, and very portable. I bought this to use for the gym, where we’ve been having to shower (instead of at home) as our water heater has gone out. Until we get it replaced we’ve been having to use the shower at the gym after our workout. I wanted a towel that would also be good for taking to the pool when I lap swim. This fits the bill. It dried me super quickly (less than 1 min I was fully dry). It didn’t weigh the towel down either. I got the extra large one, and I am 5’6” and it was plenty big to wrap around me while I was walking around to get dressed. It’s super easy to tie using the corners and it will stay put on you. I really like this. I will likely buy a few more in smaller sizes to use for hair, kids, pets, etc. it’s really good for the gym, showering on the go, and the pool so you can dry faster. I plan on using the smaller ones also for taking on a run in the hot Florida summer to keep the sweat from dripping. It doesn’t seem to have an odor, and time will tell if the towel’s silver ion feature works well, but this was worth the price in my mind.
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Reviewed in the United States on February 25, 2026
D
Verified Purchase
daveofl
Draper, US
★★★★★ 4
Very compact, yet absorbent
Color: Navy Blue, Size: 48.00" x 24.00"
This is a unique kind of towel that has very little volume and rolls up to a tiny size. It would be great for a camping trip, or any situation where size is important. It's also surprisingly absorbent, considering how thin it is. I use it for toweling off after taking a shower at the gym. I should also mention that it dries very quickly. The only thing I don't like about it is that it is kind of "sticky" when you're running it across your body. That takes some getting used to.
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Reviewed in the United States on March 9, 2026

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