---
product_id: 522475150
title: "FZONE 2.5L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit DIY Co2 Kit with Regulator And Needle Valve For Aquatic Tank (2.5 L with solenoid))"
brand: "fzone"
price: "R4629"
currency: ZAR
in_stock: true
reviews_count: 11
category: "Fzone"
url: https://www.desertcart.co.za/products/522475150-fzone-2-5l-aquarium-co2-generator-system-carbon-dioxide-reactor
store_origin: ZA
region: South Africa
---

# 12V DC solenoid timer for customizable CO2 injection scheduling Precision needle valve with bubble counter for exact CO2 control 1.5mm SUS304 stainless steel, 25% thicker for max durability FZONE 2.5L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit DIY Co2 Kit with Regulator And Needle Valve For Aquatic Tank (2.5 L with solenoid))

**Brand:** fzone
**Price:** R4629
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquatic ecosystem with precision CO2 power — because your plants deserve the best!

## Quick Answers

- **What is this?** FZONE 2.5L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit DIY Co2 Kit with Regulator And Needle Valve For Aquatic Tank (2.5 L with solenoid)) by fzone
- **How much does it cost?** R4629 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/522475150-fzone-2-5l-aquarium-co2-generator-system-carbon-dioxide-reactor)

## Best For

- fzone enthusiasts

## Why This Product

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

## Key Features

- • **Precision CO2 Control:** Fine-tune your aquarium’s CO2 flow with a high-accuracy needle valve and integrated bubble counter—steady 1 bubble per second achievable.
- • **Smart Timed Injection:** 12V DC solenoid valve lets you automate CO2 release on your schedule, optimizing plant growth and energy use.
- • **Trusted Support & Warranty:** Backed by a 1-year warranty and responsive customer service, making your aquatic upgrade risk-free.
- • **Industrial-Grade Durability:** Robust SUS304 stainless steel bottle withstands up to 1137 PSI pressure, ensuring safety and longevity.
- • **DIY Friendly & Cost-Effective:** Complete kit includes regulator and valves; just add affordable citric acid and sodium bicarbonate powders for continuous CO2 generation.

## Overview

The FZONE 2.5L Aquarium CO2 Generator System is a professional-grade DIY kit featuring a thick SUS304 stainless steel bottle, precision needle valve with bubble counter, and a 12V DC solenoid for timed CO2 injection. Designed for aquarium enthusiasts seeking reliable, adjustable, and safe CO2 delivery, this system supports lush plant growth and improved aquatic health. It offers easy setup, durable construction, and a one-year warranty, making it a top-tier choice for millennial professionals aiming to optimize their aquatic environments.

## Description

Free delivery and returns on eligible orders. Buy FZONE 2.5L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit DIY Co2 Kit with Regulator And Needle Valve For Aquatic Tank (2.5 L with solenoid)) at desertcart UK.

Review: Quality system thats easy to setup - This is excellent. I was wary of complicated systems and setups but on trying this one its an easy mix of citric acid and bicarb and Ive had over a month of CO2 so far. Easy to set up and easy to adjust the bubbles per second. Has made a visible difference to my plants. Green and lush and visibly improved growth. You can put it on a timer easily with the included solenoid. The bottle is top quality too. Excellent set up and super glad Ive added this system to my tank.
Review: FZone 2.5L CO2 Generator - After carrying out a lot of research I decided this system would be the best bang for bucks system for my 120L system. I've been running the generator for 3 months now and I'm really impressed with it. It was easy to set up and the raw ingredients are cheap and easily purchased from desertcart. The powders are added and then the water is added very slowly with the bottle at a 45 degree angle. pouring it slowly slows down the chemical reaction and stops you wasting gas as you screw the regulator on to the bottle. I was getting 2 weeks of CO2 from one charge and when I added a CO2 reactor that figure went up to almost 4 weeks. 4 weeks of CO2 from 200g of acetic and 260g of Bi Carbonate is in my opinion amazing. The regulator is easy to adjust and the solenoid valve works as it should. The kit itself contains everything you need, except the raw materials and a drop checker. These can be picked up cheaply from desertcart. CO2 has made a big difference to my plants and algae growth is virtually zero now. This kit has been the best piece of kit I have bought for my aquarium in a long time. If you want to add CO2 to your system this is a great straight out of the box solution.

## Features

- Professional DIY Kit. A complete system in 2.5L size bottle, that includes SUS304 stainless bottle, regulator, precision needle valve, and easy adjustable bubble counter
- Safe. The bottle body is made of 1.5mm thick SUS304 stainless steel (25% thicker than normal 1.2mm bottle). It can sustain pressure up to 80kg/cm2(or 1137 PSI). Safety valve will open automatically when the inside pressure exceeds the safety threshold
- Needle Valve With Bubble Counter. High precision, aquarium specific needle valve provides accurate fine-tuning. Steady 1 bps is achievable. Bubble counter with check valve built-in. It stops water from back flowing into your CO2 tank (protects your CO2 tanks from rust and corrosion)
- 12V DC Instead of AC Power: having the solenoid on a timer, you can specify when you want CO2 injection on and for how long
- Attentions: the required powders to generate CO2 gas are not included; you will need citric acid and sodium bicarbonate powders
- One-year Warranty：Fzone will offer a one-year warranty, round-the-clock service, and you can reach out to us at any time for any product-related concerns.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B5R18XDV |
| Batteries Included | No |
| Batteries required | No |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,506) |
| Date First Available | 13 Feb. 2023 |
| EU Energy Efficiency Label | A+ |
| Item Form | Liquid |
| Item Weight | 2.36 kg |
| Item model number | 2.5 L |
| Product Dimensions | 33 x 10 x 35 cm; 2.36 kg |

## Product Details

- **Brand:** FZONE
- **Item form:** Liquid
- **Item weight:** 2.36 Kilograms
- **Liquid volume:** 2.5 Litres
- **Manufacturer:** FZONE

## Images

![FZONE 2.5L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit DIY Co2 Kit with Regulator And Needle Valve For Aquatic Tank (2.5 L with solenoid)) - Image 1](https://m.media-amazon.com/images/I/61WHFAHGpsL.jpg)

## Available Options

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

## Questions & Answers

**Q: Dose this come with a uk plug or dose it come with an adapter to change it to uk plug ?.**
A: If you order from amazon.co.uk, it come with UK plug

**Q: How tall is this with the solenoid included? I see the bottle is 15inches but not th full height.**
A: Total hight with solenoid and bubble counter is 58cm for the 2.5l unit.

**Q: Hi long.   Will this last o. A 500 litre tank**
A: It depends on how much CO2 you are giving.

**Q: Can somebody please tell me how and from where can i purchase the ots 12v dc solenoid for this co2 kit. many thanks**
A: You can order it from Amazon as well. As a matter of fact I just ordered one to replace the old one that didn't work anymore.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality system thats easy to setup
*by M***E on 12 December 2025*

This is excellent. I was wary of complicated systems and setups but on trying this one its an easy mix of citric acid and bicarb and Ive had over a month of CO2 so far. Easy to set up and easy to adjust the bubbles per second. Has made a visible difference to my plants. Green and lush and visibly improved growth. You can put it on a timer easily with the included solenoid. The bottle is top quality too. Excellent set up and super glad Ive added this system to my tank.

### ⭐⭐⭐⭐⭐ FZone 2.5L CO2 Generator
*by M***N on 1 November 2025*

After carrying out a lot of research I decided this system would be the best bang for bucks system for my 120L system. I've been running the generator for 3 months now and I'm really impressed with it. It was easy to set up and the raw ingredients are cheap and easily purchased from Amazon. The powders are added and then the water is added very slowly with the bottle at a 45 degree angle. pouring it slowly slows down the chemical reaction and stops you wasting gas as you screw the regulator on to the bottle. I was getting 2 weeks of CO2 from one charge and when I added a CO2 reactor that figure went up to almost 4 weeks. 4 weeks of CO2 from 200g of acetic and 260g of Bi Carbonate is in my opinion amazing. The regulator is easy to adjust and the solenoid valve works as it should. The kit itself contains everything you need, except the raw materials and a drop checker. These can be picked up cheaply from Amazon. CO2 has made a big difference to my plants and algae growth is virtually zero now. This kit has been the best piece of kit I have bought for my aquarium in a long time. If you want to add CO2 to your system this is a great straight out of the box solution.

### ⭐⭐⭐⭐⭐ Great product at a stunning price.
*by P***T on 24 October 2025*

This is the second FZONE system I have ordered not because the first one was faulty but a second one gives me the of having a pressured system ready to swap immediately the working tank empties. The system is easy to install and use on a daily basis and is easy to clean after each recharge. There is no smell from the unit and appears to be of a high quality that will last. It has been connected to my 250l tank for four months now with no issues. The solenoid is controlled by a PH controller and, with the use of a smart plug switches CO2 injection off at night. This is important as the plants do not use CO2 at night so there is a chance of gassing the fish if it were to run with the lights off. Plant growth is certainly improved and I am now able to grow some stunning specimens of Red Tiger Lilies with some off shoots achieving a height of 18 inches in around a week. The biggest effect is on invitro plants that can double in size in a 24 hour period.

## Frequently Bought Together

- Fzone 2.5 L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for Aquarium Plants Tanks
- FZONE Aquatic CO2 Glass Drop Checker PH Momitor for Aquarium Plant Fish Tank Test CO2 Kit
- Clscea Aquarium CO2 Raw Materials Citric Acid and Baking Soda

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-24*