SKU: 54312979461

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

Sale price$26.95 Regular price$29.95
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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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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Doris Stanley
Natrona Heights, US
★★★★★ 5
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Size: 7, Color: Camo Olive
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Reviewed in the United States on May 2, 2026
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Texas 12
Draper, US
★★★★★ 5
Long lasting. Sperry is quality.
Last a long time and still look good.
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Reviewed in the United States on January 20, 2026
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Bea
Carnegie, US
★★★★★ 5
Best buy
I love these it's been a while since I bought them and still look like brand new.
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Reviewed in the United States on February 12, 2026
J
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Jessica
Boise, US
★★★★★ 3
Cute but no so comfortable
I previously owned a white sperry leather shoe that I bought from Marshall’s for about $35 & absolutely them, they were so comfortable , cute & great price.After running that pair down, I decided to buy another pair and found out the shoe was discontinued. The closest thing to what I had is this, the white crest vibe in leather. I was disappointed that this shoe was not as comfortable and didn’t fit quite the same. The back ankle part of the shoe caved into my skin and hurt. Sadly, I do not recommend this shoe for much walking. I hope Sperry decides to make this shoe more comfortable because it is cute.
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Reviewed in the United States on September 25, 2021
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Valerie Pham
Lake Worth, US
★★★★★ 5
Perfect Jeans!
Size: 26, Color: Verified Vintage, Size: 26, Color: Verified Vintage
Love these jeans, so soft and lightweight but with all the usual Levi’s class. I bought them in three different colors. They’re so well fitting and comfortable to wear. Im 5’5 140 pounds and it is true to size. The perfect fit every time.!
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Reviewed in the United States on May 11, 2026

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