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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    4.8 ★★★★★
    Based on 831 reviews
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    Product Reviews
    K
    Verified Purchase
    Karen Moran
    West Palm Beach, US
    ★★★★★ 1
    Too Cumbersome
    Size: 6 Panel-119"W, Color: Black
    Didn’t realize there were over 100 pieces to put this thing together. Had I been advised of that I would not have ordered this thing. Wayyyyy too much of a production to put it together. Nope. Returned.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 14, 2026
    L
    Verified Purchase
    LRL
    West Palm Beach, US
    ★★★★★ 3
    Great Product, But Non-Existent Seller Support
    Size: 6 Panel-119"W, Color: Black, Size: 6 Panel-119"W, Color: Black
    The Good: Well Designed: Sturdy and aesthetically pleasing. Effective: Perfectly obstructs the afternoon sun glare from my monitor screens. Moderate Assembly: Straightforward and easy for the most part. The Bad: Defective Part: One crossbar end was missing threads, preventing the assembly of the sixth panel. Zero Communication: I emailed the seller as instructed and waited 8 days with no acknowledgment. Return Logistics: Amazon offered a return, but the box is heavy, and disassembly/repackaging would be a major task. Final Verdict I really like this product, but I’m deducting two stars for a total lack of customer service. I’ve decided to buy tools and fix it myself rather than deal with a heavy return. I hope the seller sees this and reaches out. The lesson learned is to check every part of a product before assembly.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 10, 2026
    A
    Verified Purchase
    Andrea Jagarnauth
    Massapequa, US
    ★★★★★ 5
    This is definitely a buy
    Size: 6 Panel-119"W, Color: Black
    Excellent product.Good Quality.Very sturdy .Easy to assemble.Provide privacy and keeps the light out just what I needed.I am happy to recommend this divider .Do not hesitate to buy
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 7, 2024
    S
    Verified Purchase
    Shae G
    San Leandro, US
    ★★★★★ 5
    Clean Look, Sturdy — can’t ask for more!
    Size: 6 Panel-119"W, Color: Grey, Size: 6 Panel-119"W, Color: Grey
    Really like how it folds so I can create kind of a doorway with two of these. Pretty easy to assemble and has an uncluttered clean look due to the smooth fabric and nice color. Oh and it’s sturdy enough for pets.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 9, 2024
    S
    Verified Purchase
    sarah
    Draper, US
    ★★★★★ 5
    Reliable product made with care
    quality has been consistently excellent every single time. It’s reliable, tastes great, and you can tell it’s made with care. What really stands out is how it makes me feel afterward. Even after working a 12-hour overtime shift, I don’t feel as exhausted. It genuinely helps me keep my energy up. Highly recommend if you’re looking for something dependable and effective. I’ll definitely keep ordering.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 28, 2026

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