AC Infinity Air Filter Box | High Efficacy Air Filter | 4" AC-AFB4


Sale price$99.00 Regular price$113.00


  • PEOPLE are also watching that product. 



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.

  • 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.

  • Slide lock door gives easy access to inner chamber while soft neoprene layer creates dust-free seal.

  • Includes 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 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)
Product Performance and Technical Specs
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


Order shipment preparation takes 3 days. Once shipped orders usually take 2 weeks to be delivered. These are estimations; delivery can be delayed for reasons beyond our control. You can always contact us to know the exact delivery time once you placed an order with us. Have a look at our shipping policy here.


Recently viewed

You may also like