---
product_id: 411085075
title: "Inline Filter Box 100mm with High Efficacy Filter, Whole House"
brand: "ac infinity"
price: "5929 kr"
currency: NOK
in_stock: true
category: "Ac Infinity"
url: https://www.desertcart.no/products/411085075-inline-filter-box-100mm-with-high-efficacy-filter-whole-house
store_origin: NO
region: Norway
---

# MERV 13 filter blocks 0.3-1.0 micron particles 400 CFM max airflow 1mm cold-rolled steel build Inline Filter Box 100mm with High Efficacy Filter, Whole House

**Brand:** ac infinity
**Price:** 5929 kr
**Availability:** ✅ In Stock

## Summary

> 🌿 Breathe smarter, live fresher — your home's invisible shield against airborne intruders!

## Quick Answers

- **What is this?** Inline Filter Box 100mm with High Efficacy Filter, Whole House by ac infinity
- **How much does it cost?** 5929 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/411085075-inline-filter-box-100mm-with-high-efficacy-filter-whole-house)

## 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

- • **Effortless Maintenance:** Slide-lock door with neoprene seal offers quick, dust-free filter changes without hassle.
- • **Seamless HVAC Integration:** Designed to fit 4-inch inline fans like the CLOUDLINE series for streamlined installation and optimal performance.
- • **Maximum Airflow Efficiency:** Supports up to 400 CFM, ensuring powerful fresh air circulation throughout your home.
- • **Industrial-Grade Durability:** Crafted from 1mm thick cold-rolled steel and aluminum flanges for weatherproof resilience.
- • **Advanced Particle Filtration:** Includes a MERV 13 pleated filter that traps viruses, dust, pollen, and mold spores for cleaner indoor air.

## Overview

The Inline Filter Box 100mm is a robust whole-house HVAC filtration kit engineered with 1mm cold-rolled steel and aluminum flanges. It fits 4-inch inline duct fans, delivering up to 400 CFM airflow while housing a high-efficacy MERV 13 filter that captures microscopic particles including viruses and pollen. Its slide-lock door with neoprene sealing ensures easy, dust-free filter replacements, making it an essential upgrade for millennial professionals seeking cleaner, healthier indoor air and seamless integration with their CLOUDLINE fan systems.

## Description

Free delivery and returns on all eligible orders. Shop AC Infinity Inline Filter Box 100mm with High Efficacy Filter, Whole House | HVAC Filtration Kit, Fits 100mm Inline Duct Fans for Fresh Air Intake and Ventilation, 4-Inch.

## Features

- A duct filter box designed for use with inline fans to circulate fresh air and block contaminants.
- 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 MERV 13 filter that traps particles like viruses, dust, pollen, and mold spores.
- 23.46 x 8.42 x 11.73” | Fits 4” Inline Fans | 400 CFM Maximum | Accepts 12 x 20 x 1” Filters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0921N33Y7 |
| Best Sellers Rank | 261,464 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,301 in Registers, Grilles & Vents |
| Brand Name | AC Infinity |
| Compatible Devices | CLOUDLINE S4, CLOUDLINE T4 |
| Compatible Hvac Systems | Residential |
| Country Of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (105) |
| Filter Mounting Type | Slide In |
| Filter Shape | Rectangular |
| Item Dimensions L x W x Thickness | 59.6L x 21.4W x 29.8Th centimetres |
| Item Highlight | HVAC Filtration Kit, Fits 100mm Inline Duct Fans for Fresh Air Intake and Ventilation, 4-Inch |
| Item Weight | 6.42 Kilograms |
| MERV Rating | 13 |
| Manufacturer | AC Infinity |
| Manufacturer Part Number | AC-AFB |
| Material Type | Alloy Steel |
| Model Number | AC-AFB4 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Grade | new |
| UPC | 819137021693 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** AC Infinity
- **Compatible devices:** CLOUDLINE S4, CLOUDLINE T4
- **Filter Mounting Type:** Slide In
- **Filter Shape:** Rectangular
- **Item weight:** 6.42 Kilograms
- **MERV rating:** 13
- **Material:** Alloy Steel
- **Number of items:** 1
- **Product dimensions:** 59.6L x 21.4W x 29.8Th centimetres
- **UPC:** 819137021693

## Images

![Inline Filter Box 100mm with High Efficacy Filter, Whole House - Image 1](https://m.media-amazon.com/images/I/41EWnjz-1aS.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: what filter fits perfect in the 4" filter box?**
A: the 4" and 6" filters take 12x20x1" filters; the 8 and 10" box's take 14x20x1" filters

**Q: What filter replacement is suggested for the 6" filter box?  standard 20x12x1 does not fit.**
A: Different brands of filters have different "actual" sizes.  Look up the true size of the filter you are using, then check actual filter sizes for different brands that are smaller.

**Q: Do the filters trap smoke from pipes or pollen and mildew?**
A: No, you need a carbon filter for smoke

**Q: Can I use a MERV 17 or HEPA filter instead of a MEV13 filter for additional filtration if they will even fit?**
A: I use the HDX FPR 12 Ultimate Allergen with odor reduction. This filter is a higher end filter.

## Frequently Bought Together

- AC Infinity Inline Filter Box 4" with High Efficacy Filter, Whole House HVAC Filtration Kit, Fits 4-Inch Inline Duct Fans for Fresh Air Intake and Ventilation
- AC Infinity CLOUDLINE PRO S4, Quiet 4” Inline Duct Fan with Speed Controller – EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

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**Shop now:** [https://www.desertcart.no/products/411085075-inline-filter-box-100mm-with-high-efficacy-filter-whole-house](https://www.desertcart.no/products/411085075-inline-filter-box-100mm-with-high-efficacy-filter-whole-house)

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-10-20*