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AC Infinity Inline Filter Box 6" with High Efficacy Filter, Whole House HVAC Filtration Kit, Fits 6-Inch Inline Duct Fans for Fresh Air Intake and Ventilation

  • Based on 256 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jan 24
Order within 13 hours and 23 minutes
Available payment plans shown during checkout

Style: 6-Inch


Size: 23.5" x 8.4" x 0.5"


Features

  • 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 6 Inline Fans | 800 CFM Maximum | Accepts 12 x 20 x 1 Filters

Brand: AC Infinity


Material: Cold-rolled steel, Aluminum


Product Dimensions: 23.46"L x 8.42"W x 0.46"Th


MERV Rating: 13


Compatible Devices: AC Infinity CLOUDLINE Series inline duct fans


UPC:


Number of Items: 1


Manufacturer: AC Infinity


Product Grade: like new


Unit Count: 1 Count


Brand Name: ‎AC Infinity


Model Info: ‎AC-AFB6


Item Weight: ‎15.36 pounds


Product Dimensions: ‎0.92 x 0.46 x 0.33 inches


Country of Origin: ‎China


Item model number: ‎AC-AFB6


Part Number: ‎AC-AFB


Compatible Device: ‎AC Infinity CLOUDLINE Series inline duct fans


Material Type: ‎Cold-rolled steel, Aluminum


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: April 7, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great Fresh Air System - Filter Out Wildfire Smoke
Style: 4-Inch Size: 23.5" x 8.4" x 11.7"
I live in an area plagued by wildfire smoke and every year gets worse. I live in a Valley so temperature inversions are common and many of my neighbors have wood buring stove and some even illegally burn thei household garbage. I have indoor air cleaners which keep my indoor air quality index (AQI) very low, 1 to 4. However, Carbon Dioxide (CO2) levels get very high, especially in the bedroom when it can reach as high a 1400 ppm in the morning. Anything above 1000 ppm can cause headaches, fatigue, and other health issues. I assembled the system pictured it consists of the following: * AC Infinity Inline Filter Box fitted with Filterbuy 12x20x1 MERV 13 rated filters * AC Infinity Cloudline Pro S4 Inline Duct Fan * AC Infinity Flexible 4-inch Aluminum 4 layer HD Flex Hose (25') * Broan-NuTine 465B 4" to 5" Duct Adaptor * Gulrear Portable AC Window Vent Kit 5" I assembled these components and it allows me to draw in air from the outside, filter it, and disperse into the room. The 25' hose allowed me to place the outlet just below the top of the ceiling where monitoring have indicated is the best location. I use the IQ Air Airvisual Pro N1 indoor air quality monitor in the bedroom to track the AQI Index and most importantly for this purpose, the CO2 level. Prior to installing this system my highest reading in the morning averaged 950 ppm. Now I average 650 ppm. My 24 hour/day monthly average went from 735 ppm to 588 ppm. I am very pleased with the performance of the system and achieved my goal of reducing CO2 levels when I am unable to open the windows due to unhealty outdoor air quality. The AC Infinity products are of excellent quality and the inline Duct Fan is very quiet. I leave set at the 5 (out of 10) power level and it is very quiet. The combination of my air cleaner and the AC Infinity fan makes a great white noise level for restful sleep. In the pictures you will see how I have hidden some of the components under a chair. You can also see the hose outlet hidden behind the flower vase on top of the armoire. Update: Condensation inside the filter box was a concern, but with outside temps since installing in mid-October ranging from 65° to 22° F we have had zero moisture build up inside the filter box. Dry as a bone. ... show more
Reviewed in the United States on December 3, 2023 by MoonManPics MoonManPics

  • Awesome build quality on this beauty!
Style: 6-Inch Size: 23.5" x 8.4" x 0.5"
This box looks so good, it's almost a shame I have to mount it in a hidden area. It's solid. It's tough, and the finish is great. The box it was packaged in got heavily damaged in shipping, and the strength of the air handler itself is what saved it from damage. Only a few nicks to the powdercoat finish, no discernible dents, and no affect to the body or door. It latches solidly, seals competently, and comes with a pleated filter already included inside it (independently shrink-wrapped, of course) I also bought a pair of backdraft butterfly dampers (6" as well) from AC Infinity, and their build quality blew me away just as much. I'm really impressed with this company. Yeah, their stuff isn't the cheapest, but you really get what you pay for with these people. I'll be trying to use their products in future projects as often as possible. Highly recommended!! ... show more
Reviewed in the United States on March 24, 2024 by J. Street

  • works well
Style: 4-Inch Size: 23.5" x 8.4" x 11.7"
This thing is pretty solid, doesn't feel cheap. Remember to use 11.5 x 19.5 x .75 as a replacements. Its light enough to rest on top of a cheap 2x2 tent, maybe inside with proper port placement but for sure on TOP of it. First week this is catching little stuff that finds a way around the outside intake port. Second week I noticed a spider web on the filter side but not after, way better than finding webs in my grow and thinking I have spider mites. So after two weeks I don't think twice about buying this on a budget, its now a requirement to me like a carbon filter, it creates a peace of mind. ... show more
Reviewed in the United States on September 28, 2024 by Adam G

  • Dimensions are wrong, box is updated to fit a standard filter.
Style: 4-Inch Size: 23.5" x 8.4" x 11.7"
Seems like a quality box, the pictures and older reviews seem to be outdated now. Older reviews state it only fits 11.5x19.5 filters, the pictures show that as well. It seems they have updated the box because I bought that size of filter and it's smaller than the included filter. Measuring the included filter, it is almost 12 and almost 20 inches, same size as a 3m filter. The box is also about half an inch wider and taller than the picture listed because it now fits a standard size filter. Put 3 stars because they need to update their info, it's wrong on their site as well. ... show more
Reviewed in the United States on December 10, 2024 by Jeff

  • very well made
Style: 6-Inch Size: 23.5" x 8.4" x 0.5"
the housing is very well made. the filter slot is sized precisely to their own filters, not standard 12x20x1. once the air pressure goes up it shouldn't be a problem as the filter itself will seal itself against the slot.
Reviewed in the United States on December 10, 2024 by Tom Lin Tom Lin

  • Awesome option for filter box.
Style: 4-Inch Size: 23.5" x 8.4" x 11.7"
Great build quality. Would get again.
Reviewed in the United States on November 18, 2024 by Indium

  • Nice, found replacement filters easily
Style: 4-Inch Size: 23.5" x 8.4" x 11.7"
I took a risk (according to other reviews) and purchased one of the returned ones. Turned out good! Very nice build and the supplied filter is super high quality. FYI, there are two standard 12x20x1 sizes on the market...the two have different actual/nominal sizes. Bought the ones with a nominal measurement of 11.5x19.5x0.75 (as the manufacturer says to do) and they fit just fine (smaller than the o.g. but still work). ... show more
Reviewed in the United States on April 10, 2024 by BAB Squared

  • MADE LIFE ALOT BETTER AROUND HERE.
Style: 10-Inch Size: 22.5" x 13.9" x 11.6"
MASTER BEDROOM HAD RETURN AIR FILTER 10 FEET UP WALL AND HAD TO DRAG LADDER IN HOUSE TO CHANGE FILTER. INSTALLED THIS IN FLEX DUCT AND NOW I JUST PULL DOWN LADDER AND WALK UP TO HOUSING AND CHANGE OUT.SUPER QUALITY
Reviewed in the United States on November 12, 2024 by ROBERT

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