---
product_id: 411453568
title: "External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm"
brand: "clscea"
price: "B/.57"
currency: PAB
in_stock: true
reviews_count: 7
category: "Clscea"
url: https://www.desertcart.com.pa/products/411453568-external-inline-co2-diffuser-atomizer-aluminum-alloy-for-planted-aquarium
store_origin: PA
region: Panama
---

# replaceable & cleanable diffuser disc transparent visible window 100% open flow design External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm

**Brand:** clscea
**Price:** B/.57
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquascape with invisible power — CO2 diffusion perfected!

## Quick Answers

- **What is this?** External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm by clscea
- **How much does it cost?** B/.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/411453568-external-inline-co2-diffuser-atomizer-aluminum-alloy-for-planted-aquarium)

## Best For

- clscea enthusiasts

## Why This Product

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

## Key Features

- • **Flexible Installation:** Supports both horizontal and vertical connections to perfectly fit your custom aquarium layout.
- • **Crystal Clear Monitoring:** Transparent window lets you visually track diffuser performance without opening your setup—effortless maintenance at a glance.
- • **Maximized CO2 Efficiency:** Unique atomizer design dissolves CO2 more effectively than in-tank diffusers, saving you gas and boosting plant growth.
- • **Seamless Inline Integration:** 100% open flow design ensures zero filter flow restriction, keeping your aquarium pristine and clutter-free.
- • **Built-In Backflow Protection:** Integrated check valve prevents water backflow, eliminating the need for extra parts and reducing maintenance hassle.

## Overview

The Clscea External Inline CO2 Diffuser Atomizer is a sleek, aluminum alloy device designed for planted aquariums with 12mm hose fittings. Featuring a 100% open flow inline design, it installs outside the tank to save space and maintain aesthetics. Its transparent window allows easy monitoring, while the replaceable diffuser disc ensures long-term efficiency. With built-in check valve protection and versatile connection options, it maximizes CO2 dissolution for healthier, faster-growing aquatic plants, making it a must-have for serious aquarium enthusiasts.

## Description

desertcart.com : Clscea External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm : Pet Supplies

Review: I Love This Diffuser - I love this diffuser. It takes less than five minutes to install, it’s pretty cheap and you get a good even spread of co2. No annoying diffuser or bubble trail in the tank. Just a good co2 addition with nothing in the tank to take away from your aquascape. I also love that you can buy a replacement diffuser disk. They provide you with a method for cleaning and restoring the pad with bleach. If you’re going to use bleach to restore the diffuser disk soak it in a cup of water with two caps of dechlorinating solution for several hours after bleaching it. It will prevent you from killing your cycle. This diffuser produces really small micro bubbles which is exactly what you want. You’ll have to use less co2 also as it’s inline and most of it is dissolving into the water on the way to the tank. It’s worked perfectly for me and I love the viewing window so I can check the disk and know when it needs to be cleaned. It’s not bulky and it’s made of high quality materials. You cannot go wrong with this diffuser. If you’re filtering your tank well, you will rarely have to clean the disk. If you add Purigen to your canister filter as the last media before the water exits, it will remove most of the micro particles which would build up on the diffuser disk and you can reduce cleaning the disk to a couple of times per year. Purigen only costs about $13 and will save you a lot of hassle. Great diffuser, fair price, easy to set up, built in check valve. Go for it. I highly recommend this product.
Review: A Game-Changer for My Freshwater Aquarium - I recently decided to elevate my freshwater aquarium game by incorporating the Clscea External Inline CO2 Diffuser Atomizer into my setup, and the results have been nothing short of astonishing. The difference it has made in the health and vibrancy of my aquatic ecosystem is remarkable. The inline CO2 diffuser I chose boasts an elegant and discreet design, blending seamlessly into my tank without being an eyesore. Its build quality is robust and durable, assuring me that it will stand the test of time. The unit is easy to install and includes everything you need to get started, making it a hassle-free addition to any aquarium with an external canister setup. One of the standout features of this inline CO2 diffuser is its user-friendly installation process. Clear instructions and all necessary components were included, allowing me to set it up within minutes. It attaches securely to the outlet side of the canister filter. The primary purpose of a CO2 diffuser is to enhance the carbon dioxide levels in your aquarium, promoting healthy plant growth. This diffuser delivers on its promise, producing a fine mist of CO2 bubbles that get absorbed quickly by my aquatic plants. My plants have responded by growing faster, showing more vibrant colors, and producing more oxygen, creating a healthier environment for my fish. The CO2 diffuser creates consistently small and fine bubbles, which is crucial for effective carbon dioxide dissolution. It evenly distributes these bubbles throughout the tank, reaching all corners and depths without creating turbulence or disrupting the fish. This feature ensures that every plant receives the essential CO2 it needs for optimal growth. I have purchased internal Clscea CO2 diffusers for my existing high-tech tanks because they produce microbubbles. This inline CO2 Diffuser is much better in my opinion. I cannot recommend this CO2 diffuser enough for freshwater aquarium enthusiasts. Its exceptional design, ease of installation, and, most importantly, its ability to promote plant health and vitality, have turned my aquarium into a lush underwater paradise.

## Features

- 【Inline Design 】 100% Open Flow Design. There is no limit to the filter flow. Installed outside the tank, does not occupy the space in the tank, simple and neat.
- 【Clear and visible window】 Transparent and visible window, clearly see the work of the diffuser.
- 【Two connection version】 Support horizontal or vertical connection, customers choose the connection direction according to needs. Note: Need to be used with the filter!
- 【Replaceable disc】 The disk of the diffuser can be removed for cleaning or replaced. The ASIN of the replacement sheet is: B091DXVSHN
- 【High dissolution rate】 Experienced players know it better. The unique design dissolves CO2 more efficiently and saves CO2 more than in-tank CO2 diffusers.
- 【Built-in check valve】No additional check valve is required, built-in check valve pad, prevent water backflow.
- 【Size】For "Color: 12/16mm", it fit 12/16mm hose. That is fitting inner diameter of the hose with 12mm(0.47inch).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09PN2YQ3C |
| ASIN  | B09PN2YQ3C |
| Best Sellers Rank | #53,932 in Pet Supplies ( See Top 100 in Pet Supplies ) #202 in Aquarium Air Pump Accessories |
| Brand Name | Clscea |
| Color | 12/16mm |
| Customer Reviews | 4.3 4.3 out of 5 stars (110) |
| Date First Available | January 4, 2022 |
| Date First Available  | January 4, 2022 |
| Directions | Instructions on setup and usage are provided in the product description. |
| Item Dimensions LxWxH | 4.6 x 2.6 x 1.38 inches |
| Item Package Dimensions L x W x H | 3.46 x 2.28 x 1.46 inches |
| Item Weight | 3.52 ounces |
| Manufacturer | Clscea |
| Manufacturer  | Clscea |
| Material | Aluminum Alloy |
| Product Dimensions  | 4.6 x 2.6 x 1.38 inches; 3.53 ounces |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Clscea
- **Item Form:** Inline
- **Manufacturer:** Clscea

## Images

![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm - Image 1](https://m.media-amazon.com/images/I/81VMot4Q36L.jpg)
![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm - Image 2](https://m.media-amazon.com/images/I/71rH5GNUpeL.jpg)
![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm - Image 3](https://m.media-amazon.com/images/I/61lPkY-ssrL.jpg)
![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm - Image 4](https://m.media-amazon.com/images/I/613GoneLi3L.jpg)
![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm - Image 5](https://m.media-amazon.com/images/I/61D6sVh60KL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ I Love This Diffuser
*by S***N on May 6, 2025*

I love this diffuser. It takes less than five minutes to install, it’s pretty cheap and you get a good even spread of co2. No annoying diffuser or bubble trail in the tank. Just a good co2 addition with nothing in the tank to take away from your aquascape. I also love that you can buy a replacement diffuser disk. They provide you with a method for cleaning and restoring the pad with bleach. If you’re going to use bleach to restore the diffuser disk soak it in a cup of water with two caps of dechlorinating solution for several hours after bleaching it. It will prevent you from killing your cycle. This diffuser produces really small micro bubbles which is exactly what you want. You’ll have to use less co2 also as it’s inline and most of it is dissolving into the water on the way to the tank. It’s worked perfectly for me and I love the viewing window so I can check the disk and know when it needs to be cleaned. It’s not bulky and it’s made of high quality materials. You cannot go wrong with this diffuser. If you’re filtering your tank well, you will rarely have to clean the disk. If you add Purigen to your canister filter as the last media before the water exits, it will remove most of the micro particles which would build up on the diffuser disk and you can reduce cleaning the disk to a couple of times per year. Purigen only costs about $13 and will save you a lot of hassle. Great diffuser, fair price, easy to set up, built in check valve. Go for it. I highly recommend this product.

### ⭐⭐⭐⭐⭐ A Game-Changer for My Freshwater Aquarium
*by M***E on October 30, 2023*

I recently decided to elevate my freshwater aquarium game by incorporating the Clscea External Inline CO2 Diffuser Atomizer into my setup, and the results have been nothing short of astonishing. The difference it has made in the health and vibrancy of my aquatic ecosystem is remarkable. The inline CO2 diffuser I chose boasts an elegant and discreet design, blending seamlessly into my tank without being an eyesore. Its build quality is robust and durable, assuring me that it will stand the test of time. The unit is easy to install and includes everything you need to get started, making it a hassle-free addition to any aquarium with an external canister setup. One of the standout features of this inline CO2 diffuser is its user-friendly installation process. Clear instructions and all necessary components were included, allowing me to set it up within minutes. It attaches securely to the outlet side of the canister filter. The primary purpose of a CO2 diffuser is to enhance the carbon dioxide levels in your aquarium, promoting healthy plant growth. This diffuser delivers on its promise, producing a fine mist of CO2 bubbles that get absorbed quickly by my aquatic plants. My plants have responded by growing faster, showing more vibrant colors, and producing more oxygen, creating a healthier environment for my fish. The CO2 diffuser creates consistently small and fine bubbles, which is crucial for effective carbon dioxide dissolution. It evenly distributes these bubbles throughout the tank, reaching all corners and depths without creating turbulence or disrupting the fish. This feature ensures that every plant receives the essential CO2 it needs for optimal growth. I have purchased internal Clscea CO2 diffusers for my existing high-tech tanks because they produce microbubbles. This inline CO2 Diffuser is much better in my opinion. I cannot recommend this CO2 diffuser enough for freshwater aquarium enthusiasts. Its exceptional design, ease of installation, and, most importantly, its ability to promote plant health and vitality, have turned my aquarium into a lush underwater paradise.

### ⭐⭐⭐⭐⭐ Works well
*by M***E on January 3, 2026*

I use this with the fzone diy 5L tank, the fzone in-line diffuser would not work with this tank, not sure if I received a bad one or not, I did return that one. This one works excellent, I have it hooked up on a fluval 407. It’s installed at a slight angle, but works great, nice to eliminate the diffuser in the tank.

## Frequently Bought Together

- Clscea External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 12 mm
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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-21*