---
product_id: 2956141
title: "Tunze USA 7074.500 Co2 Diffuser Compact Carbon Dioxide Reactor"
brand: "tunze"
price: "$U321"
currency: UYU
in_stock: false
reviews_count: 4
url: https://www.desertcart.uy/products/2956141-tunze-usa-7074-500-co2-diffuser-compact-carbon-dioxide-reactor
store_origin: UY
region: Uruguay
---

# Max CO2 efficiency Compact design Magnet holder Tunze USA 7074.500 Co2 Diffuser Compact Carbon Dioxide Reactor

**Brand:** tunze
**Price:** $U321
**Availability:** ❌ Out of Stock

## Summary

> 🌱 Elevate Your Aquarium Game!

## Quick Answers

- **What is this?** Tunze USA 7074.500 Co2 Diffuser Compact Carbon Dioxide Reactor by tunze
- **How much does it cost?** $U321 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/2956141-tunze-usa-7074-500-co2-diffuser-compact-carbon-dioxide-reactor)

## Best For

- tunze enthusiasts

## Why This Product

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

## Key Features

- • **Maximize Your CO2:** Experience unparalleled efficiency with zero waste.
- • **Professional Grade:** Engineered for aquarists who demand the best.
- • **Effortless Installation:** Convenient magnet holder for easy placement.
- • **Space-Saving Innovation:** Compact design fits seamlessly into any setup.
- • **Eco-Friendly Performance:** Boost plant growth while being kind to the planet.

## Overview

The Tunze USA 7074.500 CO2 Diffuser is a compact carbon dioxide reactor designed to maximize CO2 usage without waste. Featuring a convenient magnet holder, it ensures easy installation and optimal performance for aquarists looking to enhance their aquatic environments.

## Description

CO2 diffuser is a carbon dioxide distributor, used to increase dissolved CO2 levels in freshwater aquariums when little space is available. It is attached to the aquarium edge, up to a glass thickness of 15 mm (1/2"), with a magnetic holder and ensures a distribution of up to four CO2 bubbles per second. In the aquarium the diffuser operates as a “stand-alone” solution with a small submerged pump, which draws in the water and thoroughly mixes it with CO2. The efficient diffuser ensures that no carbon dioxide is wasted. The diffuser is suitable for freshwater aquariums up to 1,000 liters (264 US gal.).

## Features

- Compact design
- Ensures maximum use of CO2 with no waste
- Convenient Magnet Holder

## Images

![Tunze USA 7074.500 Co2 Diffuser Compact Carbon Dioxide Reactor - Image 1](https://m.media-amazon.com/images/I/51nkmhgXipL.jpg)
![Tunze USA 7074.500 Co2 Diffuser Compact Carbon Dioxide Reactor - Image 2](https://m.media-amazon.com/images/I/41m9kLQy3KL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Works fine. The bottom spray part is not the same ...
  

*by Q***A on Reviewed in the United States on June 10, 2015*

Installed it in place of a nozzle. Works fine. The bottom spray part is not the same as in the picture. It is about 2" long. Which I like even better as it works like a spray bar and diffuses co2 enriched water to the bottom of the tank right on top of carpet. The tube is not clear and rather slate grey. After 2 weeks it became opaque due to built up inside. I do not see it as an issue so have not tried to clean it.The pump (that I do not use) is really flimsy. The protection cover broke off immediately.The spare Tunze magnet is nice to have but it is not the same as my ATO magnet. The magnets are completly exposed on the outsides (the sides that go against the glass). They supply small silicone dots intended to be ised as protective buffers but they look unreliable. The ATO magnets in comparison have full covers and rubber rings that protect the glass from any potential scratches.

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    ... Tunze products in the past and am generally very happy with what they make
  

*by J***M on Reviewed in the United States on July 2, 2014*

I have purchased other Tunze products in the past and am generally very happy with what they make.  This diffuser really did a great job at infusing the water column with CO2, however the pump is sub par for a TMDE product.  I had a small pump that I wound up using in its place.Overall rating is 3 stars but would be much better if they added a better pump to the system.

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    Quality, but Didn't Achieve the Results I Needed
  

*by D***C on Reviewed in the United States on July 30, 2018*

One of these didn't work too well for me in a planted tank, 48" wide.  I have pretty good flow, but never got the CO2 saturation I wanted.  Was able to achieve the saturation with an inline diffuser..

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.uy/products/2956141-tunze-usa-7074-500-co2-diffuser-compact-carbon-dioxide-reactor](https://www.desertcart.uy/products/2956141-tunze-usa-7074-500-co2-diffuser-compact-carbon-dioxide-reactor)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-28*