SKU: 98147639585

AC Infinity Air Filter Box w/ High Efficacy Filter 4-Inch

$107.10 $119.00
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Description

AC Infinity Air Filter Box w/ High Efficacy Filter 4-InchDescription A duct filter box designed for use with inline fans to circulate fresh air and block dust and odors. Built with 1mm thick cold rolled steel and aluminum duct flanges, able to withstand extreme weather. Specifications Product Identification Manufacturer: AC Infinity Inc. Product Name: Air Filter Box 4" Product Model: AC AFB4 UPC Code: 819137021693 Product and Mounting Dimensions Duct Opening Size: 3. 81 in. (9. 7 cm) Total Dimensions: 23.

Description
  • A duct filter box designed for use with inline fans to circulate fresh air and block dust and odors.

  • Built with 1mm thick cold-rolled steel and aluminum duct flanges, able to withstand extreme weather.

    • Specifications
  • Product Identification
  • Manufacturer: AC Infinity Inc.
  • Product Name: Air Filter Box 4"
  • Product Model: AC-AFB4
  • UPC Code: 819137021693
  • Product and Mounting Dimensions
  • Duct Opening Size: 3.81 in. (9.7 cm)
  • Total Dimensions: 23.46 x 8.42 x 11.73 in. (59.6 x 21.4 x 29.8 cm)
  • Flange Size: 3.21 in. (8.2 cm)
  • Box Material: Steel
  • Flange Material: Aluminum
  • Finish: Matte Black
  • Filter Size: Accepts 12 x 20 x 1
  • Minimum Airflow Range: 80-120 CFM
  • Maximum Airflow: 400 CFM
  • Compatible Fan Models: CLOUDLINE S4, CLOUDLINE T4
    • Data Sheets
  • Download the user manual: here
    • Kit Contents
  • a standard high efficacy filter that traps particles like dust
  • dirt
  • lint
  • and odor.
  • 23.46 x 8.42 x 11.73" | Fits 4" Inline Fans | 400 CFM Maximum | Accepts 12 x 20 x 1" Filters
  • Product Description: A whole-house air filtration system designed for use with inline duct fans such as the CLOUDLINE Series, to circulate fresh air by blocking particles like dust and dirt from entering your home in intake applications. Each air filter box is built using 1mm thick cold-rolled steel and finished with matte black powder coating. This outer body build comes together with aluminum duct flanges to create a sturdy build capable of withstanding inclement weather. Its low-maintenance design features a hinge-sealed door equipped with a slide lock that provides easy access to the inner chamber. The door is lined with a soft neoprene layer that keeps the filter in place, and dust from seeping inside.
  • Applications: Each air filter box accepts standard MERV filter replacements that slide into the inner chamber's filter slot. Comes included with a high-efficacy pleated air filter, capable of trapping 0.3-1.0 micron-sized particles such as:
  • Dust
  • Odor
  • The duct flanges fit with matching sized 4" inline fans and enable a streamlined installation to create high efficiency filtration in HVAC and grow applications. Attaching the air filter box in the starting end of your ductwork will dramatically reduce suspending particles in the air inside your home. Use with a high static pressure fan like the CLOUDLINE Series of duct fans is highly recommended to ensure maximum filtration.
    • 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: 98147639585

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    Patria Monique Castle
    New York, US
    ★★★★★ 5
    Birthday gift
    Color: 4-in-1 Wine Set - Silver
    Great birthday gift!
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    Reviewed in the United States on December 19, 2025
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    Amazon Customer
    Fort Morgan, US
    ★★★★★ 5
    Would get it again if this broke
    Color: 4-in-1 Wine Set - Silver
    This has been the best if you are a wine drinker/ does not make a mess with wine going down the bottle after pouring.
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    Reviewed in the United States on January 12, 2026
    B
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    Brightokgirl
    Omaha, US
    ★★★★★ 5
    Works well and reasonable priced
    Color: 4-in-1 Wine Set - Silver
    This works well and the price was very reasonable.
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    Reviewed in the United States on January 23, 2026
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    Matt
    Alexandria, US
    ★★★★★ 5
    Works well. The dispenser is great
    Color: 4-in-1 Wine Set - Silver
    My wife really likes the wine dispenser. Works well.
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    Reviewed in the United States on January 12, 2026
    B
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    BritCulp87
    Chelsea, US
    ★★★★★ 5
    One of the best frothers I’ve owned
    One of the best frothers I have owned. Powerful and holds charge for a long time. Yes! It’s rechargeable! Love the stand and that it comes apart for transport.
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    Reviewed in the United States on May 29, 2025

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