---
product_id: 173644462
title: "Air Duct Screen and Carbon Filter for 4 Inch Ducts; Atomic Innovations"
brand: "atomic innovations"
price: "€ 35.74"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/173644462-air-duct-screen-and-carbon-filter-for-4-inch-ducts
store_origin: HR
region: Croatia
---

# Dual-layer high airflow design MERV 4 carbon filter for particles & odors Made in USA, weather-resistant polymer frame Air Duct Screen and Carbon Filter for 4 Inch Ducts; Atomic Innovations

**Brand:** atomic innovations
**Price:** € 35.74
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your airflow game with smart filtration that works as hard as you do!

## Quick Answers

- **What is this?** Air Duct Screen and Carbon Filter for 4 Inch Ducts; Atomic Innovations by atomic innovations
- **How much does it cost?** € 35.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/173644462-air-duct-screen-and-carbon-filter-for-4-inch-ducts)

## Best For

- atomic innovations enthusiasts

## Why This Product

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

## Key Features

- • **Clean Air, No Compromise:** MERV 4 rated carbon filter reduces particles and light odors for fresher environments.
- • **Breathe Easy, Filter Smart:** Dual-layer design maximizes airflow while blocking debris and odors.
- • **Built to Last, Rain or Shine:** Rigid ASA polymer frame resists weather and wear for reliable outdoor use.
- • **Precision Fit for 4-Inch Ducts:** Perfectly sized with a 3.95-inch insert diameter for seamless installation.
- • **Made in the USA, Trusted Quality:** Crafted domestically with premium materials for peace of mind and durability.

## Overview

The Atomic Innovations Air Duct Screen and Carbon Filter is a dual-layer filter designed for 4-inch air ducts, combining a fiber screen to block small debris with a MERV 4 rated carbon filter to reduce particles and light odors. Featuring a weather-resistant ASA polymer frame and made in the USA, it ensures durable, efficient airflow management ideal for greenhouses, small shops, and light-duty applications.

## Description

Made in USA. This fiber screen + carbon filter fits perfectly into 4 inch diameter air ducts. Unit has an outer insertable diameter of 3.95 inches with a short faceplate of 4.21 inches. It will prevent small objects and particles from entering your duct system. Carbon filter layer has an estimated MERV 4 rating and will also reduce some odors. Rigid polymer frame is weather resistant. Works well with greenhouses, small shops, and other light duty filtering applications where small objects, particles, and odors are a nuisance. Easily secured at intake with duct tape or hose clamp (not included). Disclaimer: This product is not intended for use with hazardous gases. Max Temperature 180 F. Product works best in duct systems located near the fan/blower and may not allow sufficient airflow if used in conjunction with very low powered fans/blowers. Actual filter MERV rating may vary. A portion of this product is 3D printed and may show layer lines or cosmetic imperfections that will not affect product function.

## Features

- Dual layer high air flow design for 4 inch air ducts
- Fiber Screen layer to prevent small objects from passing through
- Carbon filter layer with an estimated MERV 4 rating for particle filtration and light duty odor reduction
- Has a rigid weather resistant ASA polymer frame
- Made in USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | Atomic Innovations |
| Model Info | Aii1234 |
| Item Weight | 1.12 ounces |
| Product Dimensions | 4.21 x 4.21 x 1.3 inches |
| Item model number | Aii1234 |
| Is Discontinued By Manufacturer | No |
| Part Number | Aii0014-2 |
| Color | Black |
| Compatible Device | 4 inch air ducts, 4 inch air vents, Grow Tents |
| Material Type | Activated Carbon Impregnated Polyester, Polymer |
| Included Components | 1 Air Duct Screen and Carbon Filter 4 inch Unit |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Atomic Innovations
- **Material:** Activated Carbon Impregnated Polyester, Polymer
- **Product Dimensions:** 4.21"L x 4.21"W x 1.3"Th
- **MERV Rating:** 4
- **Compatible Devices:** 4 inch air ducts, 4 inch air vents, Grow Tents
- **Item Weight:** 0.07 Pounds
- **Air Filter Construction:** Panel
- **Number of Items:** 1
- **Manufacturer:** Atomic Innovations
- **Product Grade:** new

## Images

![Air Duct Screen and Carbon Filter for 4 Inch Ducts; Atomic Innovations - Image 1](https://m.media-amazon.com/images/I/817ZZeL4uaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy installation into a 4” duct
*by Y***O on September 13, 2025*

I added a small return to an existing system, bringing it into a primary return plenum downstream from the primary filter. This filter will prevent foreign particles from entering the hvac unit. I did drill two holes for readily accessible screws should I need to take it off and clean out any accumulation (not expected, but being able to take it off is appropriate).

### ⭐⭐⭐⭐⭐ Perfect!!!
*by S***Y on April 20, 2023*

Fits on ducts like a charm. Does what need it for. Does what it’s supposed to do. Happy I found what I was looking for.

### ⭐⭐⭐⭐ It works
*by B***Y on October 17, 2020*

Well made and works to filter intake air. A bit pricey but it works.Probably wouldnt buy again at the price point.One positive is the rivets can be drilled out to replace the filter material.Just need three screws.

## Frequently Bought Together

- Air Duct Screen and Carbon Filter for 4 Inch Ducts; Atomic Innovations
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**Shop now:** [https://www.desertcart.hr/products/173644462-air-duct-screen-and-carbon-filter-for-4-inch-ducts](https://www.desertcart.hr/products/173644462-air-duct-screen-and-carbon-filter-for-4-inch-ducts)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-10*