---
product_id: 311970889
title: "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"
brand: "ac infinity"
price: "€ 451.67"
currency: EUR
in_stock: true
reviews_count: 8
category: "Ac Infinity"
url: https://www.desertcart.com.cy/products/311970889-ac-infinity-inline-filter-box-6-with-high-efficacy-filter
store_origin: CY
region: Cyprus
---

# MERV 13 high efficacy filter 800 CFM max airflow capacity 1mm thick cold-rolled steel & aluminum build 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

**Brand:** ac infinity
**Price:** € 451.67
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your air game — because fresh air is the new luxury.

## Quick Answers

- **What is this?** 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 by ac infinity
- **How much does it cost?** € 451.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/311970889-ac-infinity-inline-filter-box-6-with-high-efficacy-filter)

## Best For

- ac infinity enthusiasts

## Why This Product

- Trusted ac infinity brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Integration:** Perfectly fits 6-inch inline duct fans, supporting up to 800 CFM for powerful whole-house ventilation.
- • **Effortless Maintenance:** Slide lock door and soft neoprene seal ensure quick, dust-free filter changes without hassle.
- • **Engineered for Precision:** True-to-size inlet/outlet flanges and airtight sealing prevent leaks, maximizing HVAC efficiency.
- • **Rugged Industrial Strength:** Built with heavy-gauge cold-rolled steel and aluminum for unmatched durability and weather resistance.
- • **Breathe Cleaner, Live Better:** Equipped with a MERV 13 high efficacy filter that traps dust, dirt, lint, and odors for fresher indoor air.

## Overview

The AC Infinity Inline Filter Box 6" is a premium HVAC filtration solution designed for 6-inch inline duct fans. Constructed from 1mm thick cold-rolled steel and aluminum, it offers robust durability and weather resistance. Featuring a MERV 13 high efficacy filter, it effectively traps airborne particles and odors, enhancing indoor air quality. With an 800 CFM max airflow capacity and a user-friendly slide lock door with neoprene sealing, this filter box ensures easy maintenance and airtight performance for whole-house fresh air intake and ventilation.

## Description

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 - desertcart.com

Review: Great box, worth the money! - Great filter box. Built with good materials. Hinges are smooth and the latch is solid and looks and works great. I used this for my fresh air intake with a motorized damper for my A/C system. The inlet and outlet flanges were true to size and the door sealed very well with no leakage. It was easy to install and remove the included filter. This is heavy gauge metal and makes the box have some weight to it, so be prepared to have a way to mount or hang it. It's easy to tell this is a good product. The shipping box and packing were really nice....I hated to throw it away. You get quality with this box, it's worth the money, which is hard to find these days.
Review: I found a replacement filter for the 6" model - We used this 6" model for a fresh make up air for our house. Reading the review we realized people were upset that AC Infinity doesn't sell replacement air filters and those readily available filters at the big box store won't fit. If you are searching for a replacement then buy the Nordic Pure 12x20x1. desertcart sells this brand of filter as well. The actual measurements for this filter is: 11.5 x 19.5 x 0.75 inches. Although this air filter is about 0.25-.05 in short on the length and width, it still fit the air box and the seal is still in tact. See pictures for a visual illustration and reference my finger. As for the air box itself, this is a well constructed and high quality air inbox. This is expensive but I believe the quality and craftsmanship justified the price. I hope this review helps.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0921XRFLX |
| Best Sellers Rank | #139,429 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #813 in Furnace Filters |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Compatible Devices | AC Infinity CLOUDLINE Series inline duct fans |
| Customer Reviews | 4.6 out of 5 stars 178 Reviews |
| Item Dimensions L x W x Thickness | 23.46"L x 8.42"W x 0.46"Th |
| MERV Rating | 13 |
| Manufacturer | AC Infinity |
| Material | Cold-rolled steel, Aluminum |
| Material Type | Cold-rolled steel, Aluminum |
| Model Number | AC-AFB6 |
| Number of Items | 1 |
| Product Dimensions | 23.46"L x 8.42"W x 0.46"Th |
| Product Grade | like new |
| UPC | 819137021709 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** AC Infinity
- **Compatible Devices:** AC Infinity CLOUDLINE Series inline duct fans
- **MERV Rating:** 13
- **Manufacturer:** AC Infinity
- **Material:** Cold-rolled steel, Aluminum
- **Number of Items:** 1
- **Product Dimensions:** 23.46"L x 8.42"W x 0.46"Th
- **Product Grade:** like new
- **UPC:** 819137021709
- **Unit Count:** 1 Count

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/51ZtOdXVjiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great box, worth the money!
*by T***D on October 8, 2025*

Great filter box. Built with good materials. Hinges are smooth and the latch is solid and looks and works great. I used this for my fresh air intake with a motorized damper for my A/C system. The inlet and outlet flanges were true to size and the door sealed very well with no leakage. It was easy to install and remove the included filter. This is heavy gauge metal and makes the box have some weight to it, so be prepared to have a way to mount or hang it. It's easy to tell this is a good product. The shipping box and packing were really nice....I hated to throw it away. You get quality with this box, it's worth the money, which is hard to find these days.

### ⭐⭐⭐⭐⭐ I found a replacement filter for the 6" model
*by N***M on December 30, 2022*

We used this 6" model for a fresh make up air for our house. Reading the review we realized people were upset that AC Infinity doesn't sell replacement air filters and those readily available filters at the big box store won't fit. If you are searching for a replacement then buy the Nordic Pure 12x20x1. Amazon sells this brand of filter as well. The actual measurements for this filter is: 11.5 x 19.5 x 0.75 inches. Although this air filter is about 0.25-.05 in short on the length and width, it still fit the air box and the seal is still in tact. See pictures for a visual illustration and reference my finger. As for the air box itself, this is a well constructed and high quality air inbox. This is expensive but I believe the quality and craftsmanship justified the price. I hope this review helps.

### ⭐⭐⭐⭐⭐ Awesome build quality on this beauty!
*by J***T on March 24, 2024*

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!!

## Frequently Bought Together

- 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
- AC Infinity Flexible 6-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust
- AC Infinity CLOUDLINE PRO S6, Quiet 6” Inline Duct Fan with Speed Controller - EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-21*