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Brand: AC Infinity

AC INFINITY RAXIAL S8, Inline Booster Duct Fan with Speed Controller, 8-Inch

AC INFINITY RAXIAL S8, Inline Booster Duct Fan with Speed Controller, 8-Inch

SKU: SKU:AC-RXS8

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Regular price $49.99 USD
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Availability: 1-3 business days

The AC Infinity RAXIAL S8 is an 8-inch inline duct fan with a built-in speed controller that quietly boosts airflow through HVAC runs, grow tents, and indoor gardens. Its die-cast unibody construction and dual-ball bearings deliver long-lasting, efficient ventilation for demanding residential and commercial setups.
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8-Inch Inline Duct Fan for Grow Tents and HVAC

The AC Infinity RAXIAL S8 8" inline duct fan is engineered to boost airflow in HVAC ducts, grow tents, and indoor gardens, helping you maintain stable temperatures and humidity for healthier plants. Its unibody die-cast housing, matte black steel cylinder, and balanced steel blades reduce vibration and noise while delivering up to 428 CFM at just 43 dBA.

Quiet Inline Duct Booster Fan with Speed Controller

Equipped with permanently lubricated dual-ball bearings rated for 67,000 hours, this inline duct booster fan can be mounted horizontally or vertically to fit tight hydroponic and ventilation layouts. The included variable speed controller with secure aviation plug lets you fine-tune airflow from a gentle breeze to full power, making it ideal for dialing in negative pressure, odor control, and fresh air exchange in grow rooms, basements, and other indoor spaces.

Key benefits:

  • Improves climate control in grow tents – Boosts airflow through ducting to help maintain stable temperature and humidity, supporting optimal plant growth.

  • Ideal 8-inch size for common tent ports – Fits standard 8" duct flanges used on many grow tents and carbon filter setups.

  • Quiet operation for indoor grows – 428 CFM at about 43 dBA helps move serious air without overwhelming noise in bedrooms, closets, or small grow rooms.

  • Precise airflow control – Inline variable speed controller lets growers dial in just the right airflow for negative pressure, odor control, and CO₂ exchange.

  • Durable, long-life design – Die-cast unibody housing, balanced steel blades, and dual-ball bearings rated to 67,000 hours reduce downtime and replacement costs.

  • Flexible mounting options – Compact cylindrical body and multi-orientation mounting make it easy to install in tight hydroponic setups, inline with filters, hoods, or duct runs.

Product Specifications and Installation:

  • Fan Unit Dimensions: 7.28 x 7.87 x 7.87 inches, providing a compact yet powerful solution for your ventilation needs.
  • Controller Dimensions: 2.95 x 1.49 x 1.18 inches, with a required mounting area of 1.49 x 1.18 inches.
  • Airflow and Performance: Capable of delivering a maximum airflow of 428 CFM with a noise level of 43 dBA.
  • Operating Specs: Operating voltage of 110V-120V AC, power consumption of 46 W, and a current of 0.80 A.

Installation is straightforward, and the fan can be mounted in multiple orientations, adding to its versatility.

What's Included:

  • One AC-powered inline booster duct fan
  • Speed controller with power plug
  • Mounting screws
  • Cable management set

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Component Specification Value
Controller Total Dimensions 2.95 x 1.49 x 1.18 in. (7.5 x 3.8 x 3.0 cm)
Required Mounting Area 1.49 x 1.18 in. (3.8 x 3.0 cm)
Hole-to-Hole Distance 1.88 in. (4.8 cm)
Screw Hole Size Ø 0.197 in. (Ø 0.5 cm)
Fan Unit Duct Size 8"
Total Dimensions 7.28 x 7.87 x 7.87 in. (18.5 x 20.0 x 20.0 cm)
Cord Length to Controller 72 in. (6 feet)
Cord Length to Plug 36 in. (3 feet)
Maximum Airflow 428 CFM
Total Noise 43 dBA
Static Pressure 2.45 mm-H2O
Operating Voltage 110V-120V AC
Power 46 W
Current 0.80 A
Operating Humidity 35 to 85% RH
Operating Temperature 40 to 140 °F
Fan Bearings Dual Ball Bearing
Mounting Positions Horizontal or Vertical
L10 Life Expectancy 67,000 Hours