---
product_id: 513184979
title: "Fzone 2.5 L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for Aquarium Plants Tanks"
brand: "fzone"
price: "€ 260.30"
currency: EUR
in_stock: true
reviews_count: 10
category: "Fzone"
url: https://www.desertcart.fi/products/513184979-fzone-2-5-l-aquarium-co2-generator-system-carbon-dioxide
store_origin: FI
region: Finland
---

# 12V DC solenoid timer control Precision needle valve with bubble counter 1.5mm SUS304 stainless steel, 25% thicker Fzone 2.5 L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for Aquarium Plants Tanks

**Brand:** fzone
**Price:** € 260.30
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate Your Aquarium Game with Precision CO2 Power!

## Quick Answers

- **What is this?** Fzone 2.5 L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for Aquarium Plants Tanks by fzone
- **How much does it cost?** € 260.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/513184979-fzone-2-5-l-aquarium-co2-generator-system-carbon-dioxide)

## 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

- • **Complete DIY System:** All-in-one 2.5L kit includes regulator, needle valve, bubble counter, and safety valve for hassle-free setup and peace of mind.
- • **Precision CO2 Control:** Fine-tune your aquarium’s CO2 output with the professional-grade needle valve and integrated bubble counter for steady 1 bps flow.
- • **Smart Timed Injection:** 12V DC solenoid with timer lets you schedule CO2 release, optimizing plant growth while saving energy and resources.
- • **Trusted Support & Safety:** Automatic pressure relief valve and 24/7 customer service ensure your aquatic ecosystem thrives without worry.
- • **Built to Last, Built for Power:** Robust 1.5mm SUS304 stainless steel bottle withstands up to 80kg/cm² pressure for unmatched durability and safety.

## Overview

The Fzone 2.5L Aquarium CO2 Generator System is a professional-grade DIY kit featuring a 25% thicker SUS304 stainless steel bottle capable of withstanding high pressure. It includes a precision needle valve with bubble counter for accurate CO2 dosing, a 12V DC solenoid timer for scheduled injection, and a safety valve for automatic pressure relief. Designed for serious aquarium plant enthusiasts, this system delivers steady CO2 flow for up to a month, enhancing plant health and growth with reliable, efficient performance.

## Description

desertcart.com : Fzone 2.5 L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for Aquarium Plants Tanks : Pet Supplies

Review: It's a good tank. - No seal problems, all parts there, instructions are mostly good. If you dont have a scale, you'll need to do a little math. I added 13.8 Tablespoons Baking Soda, and 8.3 Tablespoons Citric Acid with my 300ML water and it seems to be working out... but again do your own math and make sure do NOT take my word for it. It's been a few weeks and my plants seem happy and my fish are alive so those measurements haven't killed my 29G just yet... Anyways, the setup seems ideal and is decent price as far as I can tell. It does the job well, and hasn't failed me yet. Seems like it's decently made so I'm happy with my purchace. Would buy from this seller again. On a final note... buy a CO2 drop checker. I did some math and figured 1 bubble per 2 seconds was good.... now I'm using 4 bubbles per 1 second. It will help you figure out how much to be adding to your tank and save you mental stress trying to guess. Just take it SLOW and figure out what rate gets your checker green fastest and keeps it green without going into the yellow (danger) zone.
Review: This is a great CO2 generator - Fzone has fantastic customer support (thank you Cheryl). I was missing the white piece on my filter and they sent me a new filter. I have used an fzone regulator on a paintball tank previously, but I had a stroke, and it's no longer possible for me to go get CO2. Therefore, I looked for a CO2 generator and was happy to find that fzone had this one Because of my previous familiarity with using CO2, despite the horrible instructions, it was quite easy to get set up and get started. This unit came with a solenoid which works perfectly. I have it on a timer to turn on in the morning and shut off at night. I replaced the diffuser with one from clscea (stainless steel, widen hook 25cm) which works much better, especially for rimmed tanks. The supplied funnel's base is too narrow to be of real use (fzone please replace this). This unit no leaks, it's looks great, runs quietly, gives me great value for money, and I have to trim my stem plants more often now and my plants look fantastic Fzone makes great products and I will buy from them again.

## Features

- Thicker and last longer! Fzone's DIY CO2 bottles last longer and are thicker than average! With a strong interior wall that can hold more raw materials, our bottles are made of 1.5mm thick SUS304 graded stainless steel, 25% thicker than competitors. The Fzone co2 kit aquarium can withstand a max 80kg/cm2 pressure and generates CO2 gas for 1 month at 1bps for 8 hours a day when filled with 300-400g raw materials. Get a longer-lasting and more efficient CO2 solution with Fzone!
- Professional DIY kit -- A complete system in 2.5L size bottle, that includes SUS304 stainless bottle, regulator, precision needle valve, and easily adjustable bubble counter. Safety valve will open automatically when the inside pressure exceeds the safety threshold.
- High precision--Needle valve with bubble counter. 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 purchase the citric acid and sodium bicarbonate powders separately.
- Customer Service Team：Fzone will offer a 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 |
| ASIN  | B0B5R18XDV |
| Age Range Description | Adult |
| Best Sellers Rank | #34,783 in Pet Supplies ( See Top 100 in Pet Supplies ) #123 in Aquarium Air Pump Accessories |
| Brand Name | FZONE |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,530) |
| Date First Available | January 8, 2023 |
| Date First Available  | January 8, 2023 |
| Directions | Assemble the kit by connecting the regulator, needle valve, and bubble counter to the stainless steel bottle. Fill the bottle with 300-400g of raw materials (citric acid and sodium bicarbonate, not included). Connect the CO2 tubing to the needle valve and place the diffuser in the aquarium. Use the 12V DC solenoid with a timer for controlled CO2 injection. The CO2 generator system can produce CO2 … |
| Item Dimensions LxWxH | 12.99 x 3.94 x 13.78 inches |
| Item Package Dimensions L x W x H | 15.91 x 10.98 x 5.67 inches |
| Item Weight | 2.36 Kilograms |
| Item model number | 2.5 L |
| Item model number  | 2.5 L |
| Manufacturer | FZONE |
| Manufacturer  | FZONE |
| Model Name | 2.5l |
| Product Dimensions  | 12.99 x 3.94 x 13.78 inches; 5.2 Pounds |
| Specific Uses for Product | Indoor |
| Warranty Description | 1 year |

## Product Details

- **Brand:** FZONE
- **Item Weight:** 2.36 Kilograms
- **Liquid Volume:** 2.5 Liters
- **Manufacturer:** FZONE
- **UPC:** 689323444083

## Images

![Fzone 2.5 L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for Aquarium Plants Tanks - Image 1](https://m.media-amazon.com/images/I/61WHFAHGpsL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the reason for needing a solenoid? How will the system run without one?**
A: The solenoid will control the co2 output. When turn off the solenoid, there will not be co2 out from the generator. If without the solenoid, the co2 will keep output.

**Q: How long do I have to wait before using the set up in my tank?**
A: You can use it as soon as the needle is in the green.

**Q: How can i replace the needle valve. Mine is broken alternating between full throttle or 0?**
A: This isn’t a replacement part for the co2 generator it’s valve for a co2 tank. I recommend contacting the manufacturer.

**Q: For a 4l co2 generator, should i put in 600-800 gram each of material a&b? also do i pour in 300ml water or more? i've read different opinions online.**
A: I use 600 ml for the material each and 800 ml of water I freeze the water in try"s that make long round ice cubes the cube are made to put in  water bottles

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's a good tank.
*by K***P on April 24, 2024*

No seal problems, all parts there, instructions are mostly good. If you dont have a scale, you'll need to do a little math. I added 13.8 Tablespoons Baking Soda, and 8.3 Tablespoons Citric Acid with my 300ML water and it seems to be working out... but again do your own math and make sure do NOT take my word for it. It's been a few weeks and my plants seem happy and my fish are alive so those measurements haven't killed my 29G just yet... Anyways, the setup seems ideal and is decent price as far as I can tell. It does the job well, and hasn't failed me yet. Seems like it's decently made so I'm happy with my purchace. Would buy from this seller again. On a final note... buy a CO2 drop checker. I did some math and figured 1 bubble per 2 seconds was good.... now I'm using 4 bubbles per 1 second. It will help you figure out how much to be adding to your tank and save you mental stress trying to guess. Just take it SLOW and figure out what rate gets your checker green fastest and keeps it green without going into the yellow (danger) zone.

### ⭐⭐⭐⭐⭐ This is a great CO2 generator
*by A***I on October 8, 2024*

Fzone has fantastic customer support (thank you Cheryl). I was missing the white piece on my filter and they sent me a new filter. I have used an fzone regulator on a paintball tank previously, but I had a stroke, and it's no longer possible for me to go get CO2. Therefore, I looked for a CO2 generator and was happy to find that fzone had this one Because of my previous familiarity with using CO2, despite the horrible instructions, it was quite easy to get set up and get started. This unit came with a solenoid which works perfectly. I have it on a timer to turn on in the morning and shut off at night. I replaced the diffuser with one from clscea (stainless steel, widen hook 25cm) which works much better, especially for rimmed tanks. The supplied funnel's base is too narrow to be of real use (fzone please replace this). This unit no leaks, it's looks great, runs quietly, gives me great value for money, and I have to trim my stem plants more often now and my plants look fantastic Fzone makes great products and I will buy from them again.

### ⭐⭐⭐⭐⭐ Perfect little co2 delivery system
*by R***M on March 1, 2024*

I bought this for my small 7g aquarium. Original plan was to keep it without co2 because I was out of spare 5lb cylinders and regulator and I needed something small to tuck away. I have used fermentation co2 when if started in the hobby but it never generates enough pressure to use a decent diffuser. This system is great. It arrived next day. I was able to put it in service same day and it was putting out 50psi which is more than adequate for any diffuser. Assembly was easy. Quality of materials is very good. Came with spare orings, co2 tubing, bubble counter, diffuser and a u-tube. Also had a filter which is very essential to keep the regulator out of any issues form the acidic mix. Most of these systems don’t have a good solenoid to run on a timer but I have used fzone regulator and this solenoid is just as good. The bubble counter is solid with not backflow issues. The needle valve is good enough for my needs. Was able to dial it to little under a bubble per second. Also like the 2 guages to show you cylinder pressure and working pressure, which will allow me to know when it’s time to refill the system. It’s been 4 days and the pressure is holding steady and the plants are definitely enjoying it. Would definitely recommend this system to anyone.

## 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

---

## 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.fi/products/513184979-fzone-2-5-l-aquarium-co2-generator-system-carbon-dioxide](https://www.desertcart.fi/products/513184979-fzone-2-5-l-aquarium-co2-generator-system-carbon-dioxide)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-08*