---
product_id: 511889881
title: "External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm"
brand: "clscea"
price: "₩149288"
currency: KRW
in_stock: true
reviews_count: 5
category: "Clscea"
url: https://www.desertcart.kr/products/511889881-external-inline-co2-diffuser-atomizer-aluminum-alloy-for-planted-aquarium
store_origin: KR
region: South Korea
---

# 100% Open Flow Design Transparent Visible Window Built-in Check Valve External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm

**Brand:** clscea
**Price:** ₩149288
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your planted aquarium game with precision CO2 diffusion!

## Quick Answers

- **What is this?** External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm by clscea
- **How much does it cost?** ₩149288 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/511889881-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

- • **Maintenance Made Easy:** Replaceable diffuser disc and built-in check valve ensure hassle-free cleaning and prevent backflow.
- • **Crystal Clear Monitoring:** Transparent window lets you visually confirm CO2 diffusion in real-time—no guesswork needed.
- • **Efficient CO2 Dissolution:** Advanced design maximizes CO2 absorption, saving you gas and boosting plant growth.
- • **Flexible Connection Options:** Supports both horizontal and vertical hose setups to fit your unique aquarium layout.
- • **Seamless Inline Integration:** Keeps your aquarium clutter-free by installing externally without sacrificing filter flow.

## Overview

This External Inline CO2 Diffuser, crafted from durable aluminum alloy, features a 100% open flow design that maintains filter efficiency while being installed outside the tank. Its transparent window allows clear monitoring of CO2 diffusion, and it supports versatile hose connections (16/22mm). The diffuser maximizes CO2 dissolution for healthier plants, includes a built-in check valve to prevent water backflow, and offers a replaceable disc for easy maintenance—making it a professional-grade upgrade for any planted aquarium setup.

## Description

Details: Super fine and high rate of CO2 diffusion, this CO2 diffuser provides professional quality and value. Simple to set up. A minimum of 1kg/cm² (14psi) of pressure is required. PACKAGE INCLUDED: 1 x Inline CO2 Diffuser 2 x Hose clamps 1 x screwdriver

Review: I been using co2 inline for a while now, the ceramic cylinder type one, i was a starting to loosing performance, I was due for maintenance.. So. While one is in service, I would have one in bleach solution for cleaning, so I tough why not purchase another one.. Based on desertcart recommandation and many positive review i had really high hope and excited to try this one.. Delivery came, started reading instructions, inspecting the diffuseur, I tried screwing co2 line into it for test fitting, screw it firmly and the tip broke.. Didn't even have the chance to try it out.. So just for that I would be giving it a 1 start rating for fast delivery... And minus 4 star for quality of product. Let's hope it's only a assembly or quality control problem and I was just badlucky, other user won't have water leak down the road 😉
Review: Works good. Only issue is the front view window traps air bubbles.

## 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: 16/22mm", it fit 16/22mm hose. That is fitting inner diameter of the hose with 16mm(0.63inch)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09PN4JHH3 |
| Batteries Included | No |
| Batteries required | No |
| Colour | 16/22mm |
| Customer Reviews | 4.1 4.1 out of 5 stars (50) |
| Date First Available | 12 Mar. 2022 |
| Item Weight | 101 g |
| Pet Type | Fish and Aquatic |
| Product Dimensions | 11.68 x 6.6 x 3.51 cm; 101 g |
| Quantity | 1 |

## Images

![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm - Image 1](https://m.media-amazon.com/images/I/61hJC7BOICL.jpg)
![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm - Image 2](https://m.media-amazon.com/images/I/71rH5GNUpeL.jpg)
![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm - Image 3](https://m.media-amazon.com/images/I/61C1dVlfNKL.jpg)
![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm - Image 4](https://m.media-amazon.com/images/I/61dk4SpQjhL.jpg)
![External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm - Image 5](https://m.media-amazon.com/images/I/61D6sVh60KL.jpg)

## Customer Reviews

### ⭐ Review
*by S***E on 8 October 2024*

I been using co2 inline for a while now, the ceramic cylinder type one, i was a starting to loosing performance, I was due for maintenance.. So. While one is in service, I would have one in bleach solution for cleaning, so I tough why not purchase another one.. Based on Amazon recommandation and many positive review i had really high hope and excited to try this one.. Delivery came, started reading instructions, inspecting the diffuseur, I tried screwing co2 line into it for test fitting, screw it firmly and the tip broke.. Didn't even have the chance to try it out.. So just for that I would be giving it a 1 start rating for fast delivery... And minus 4 star for quality of product. Let's hope it's only a assembly or quality control problem and I was just badlucky, other user won't have water leak down the road 😉

### ⭐⭐⭐⭐ Review
*by D***O on 17 November 2025*

Works good. Only issue is the front view window traps air bubbles.

### ⭐⭐⭐ Review
*by E***. on 7 October 2024*

This thing was great to start... less impressed over time. It started to build up algea and debris on the diffuser disc just like the ones in the tank. I thought this one wouldn't since it was in the filter line; I also kept it covered from light but it still got build up. It took longer but alas, still did. Changing the disc requires you to open the line which means a watery mess. I ended up switching to a different system.

## Frequently Bought Together

- Clscea External Inline CO2 Diffuser Atomizer Aluminum Alloy for Planted Aquarium 16 mm
- FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder
- FZONE 16 feet Aquarium Co2 Proof Tubing 3/16'' ID Black Food Grade Air Line Tubing

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-11*