Hydroponic In‑Line Duct Booster Fans 4″, 6″ & 8″ – 90/240/420 CFM High‑Pressure, Low‑Noise
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
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High‑Pressure Airflow: Up to 420 CFM (8″ model) under restrictive duct conditions
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Low‑Noise Operation: Precision‑balanced impeller and insulated housing keep sound below 50 dB
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Durable Construction: Galvanized‑steel casing resists corrosion and wear
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Plug‑and‑Play Setup: Pre‑wired 1.6 m power cord with standard 120 V plug—no hardwiring needed
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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)
