SKU: 98147639585

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

$107.10 $119.00
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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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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    4.1 ★★★★★
    Based on 212 reviews
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    S
    Verified Purchase
    Stephanie Robnett
    Pawtucket, US
    ★★★★★ 5
    The best
    Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
    The best no show socks I have found. Stay in place very well and hold up wash after wash. I have tossed all the other brands I’ve bought over the years and stocked up on these as I was tired of digging through the drawer hoping to find a clean pair.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 8, 2024
    G
    Verified Purchase
    Ginni
    Carnegie, US
    ★★★★★ 5
    Love these.
    Number of Items: 3, Color: White (3-pairs), Size: Medium
    I have them in black and white. I use them everyday in all shoes. These are very versatile and a great quality material. They take a looong time to wear and they stay in place. Very washable and good material. They are not too thick and they do not shrink. I do air dry mine. They do not hold smells even in the summer heat.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on July 7, 2024
    M
    Verified Purchase
    Maria White
    Cuba, US
    ★★★★★ 5
    Perfect!
    Number of Items: 3, Color: Pink Quartz Assorted (3-pairs), Size: Medium
    My new favorite socks! True to size, fit perfectly, and the best part is they do not slide off your foot! 10/10 recommend!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on July 10, 2025
    J
    Verified Purchase
    J
    Whiting, US
    ★★★★★ 5
    Perfect thickness and soft feel.
    Size: 6-10, Color: Halo Gray/Assorted
    Why did you pick this product vs others?: Love theses socks.  It's hard to find socks which won't get pulled down by athletic shoes.  These stay put.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 29, 2025
    Z
    Verified Purchase
    Zippity_duda
    Belleville, US
    ★★★★★ 5
    Comfy, great quality
    Size: 6-10, Color: White
    I’ve had these for quite a while now. They are holding up very well as i wear them a lot for work (coaching). They are very cushiony and most importantly, they do not slip! I would compare these to Bombas but at a significantly better price point.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 18, 2024

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