---
product_id: 538511121
title: "FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder"
brand: "fzone"
price: "KD 25.80"
currency: KWD
in_stock: true
reviews_count: 5
category: "Fzone"
url: https://www.desertcart.com.kw/products/538511121-fzone-aquarium-co2-regulator-dc-solenoid-with-bubble-counter-check
store_origin: KW
region: Kuwait
---

# Bubble counter with check valve prevents water backflow Precision fine-tuning knob for 1 bubble/3 seconds CO2 flow 12V DC split-type solenoid for safer, stable CO2 control FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder

**Brand:** fzone
**Price:** KD 25.80
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquarium game with precision CO2 control—because your plants deserve the best!

## Quick Answers

- **What is this?** FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder by fzone
- **How much does it cost?** KD 25.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/538511121-fzone-aquarium-co2-regulator-dc-solenoid-with-bubble-counter-check)

## 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

- • **Leak-Proof Engineering:** Upgraded sealing materials and check valve ensure zero leaks and no water backflow—protect your investment.
- • **All-Inclusive Setup Kit:** Includes bubble counter, check valve, and installation tools—get your CO2 system running in no time.
- • **Precision Bubble Control:** Fine-tune your CO2 release to a perfect 1 bubble every 3 seconds—optimal for thriving aquatic plants.
- • **Next-Gen DC Solenoid Power:** Safer & more stable than traditional AC models for worry-free aquarium CO2 control.
- • **Durable Aluminum Alloy Build:** Class 1 manufacturing tech with knurled knobs for effortless adjustments and long-lasting performance.

## Overview

The FZONE Aquarium CO2 Regulator System features a cutting-edge 12V DC split-type solenoid for enhanced safety and stability, a high-precision fine-tuning knob enabling one bubble every 3 seconds, and a bubble counter with integrated check valve to prevent water backflow. Crafted from durable aluminum alloy with knurled knobs, it offers leak-proof performance and easy adjustments. This all-in-one kit includes all necessary tools for quick installation, making it ideal for millennial aquarium enthusiasts aiming to optimize plant growth and maintain a healthy aquatic environment.

## Description

Introducing the FZONE Aquarium CO2 Regulator System, a must-have for plant growth in your home aquarium. This system features a dual big gauge for easy reading of inner and working pressure, with a 1.6 inch diameter for clear visibility. It comes with an updated split-type DC solenoid, providing a safer and more stable alternative to AC models. The high precision structure is designed specifically for aquariums, allowing for easy fine-tuning to release one bubble every 3 seconds. The bubble counter, included with the system, allows for accurate reading of CO2 flow rate and includes a check valve to prevent water backflow. Made of hard aluminum alloy with knurled pressure and fine tuning knobs, this system is durable and easy to use. The FZONE Aquarium CO2 Regulator System is compatible with a tank volume of up to 9.9 liters and is suitable for use with fish species. It is lightweight, weighing only 0.9 grams, and is made of aluminum for long-lasting use. This system is a Class 1 Manufacturing Technology product and is designed for use in home aquariums. The package includes a bubble counter, tools, and all necessary installing components. Get ready to see your aquatic plants thrive with the FZONE Aquarium CO2 Regulator System.

Review: Bel appareil mais dommage que la notice ne soit qu'en anglais.
Review: Buyer beware. This regulator solenoid does not shut off CO2. Soon as the product arrived, I read the instructions and installed the regulator on my 5lb CO2 tank. Right out the box, the solenoid was faulty and does not shut off the CO2. I then waited for over 4 hours to see if the bubbles in the bubble counter would stop. It did not. I then tried uninstalling the regulator and double checking my fittings. That did not solve the problem. I have to manually turn off the bubble counter for the bubbles to stop. I did a leak test. There were no leaks. Since my aquarium is still cycling, I have no livestock except for plants. Should I continue to use this regulator, IT WILL KILL MY LIVESTOCK. The instructions are very basic and provide no problem solving. There are some grammatical errors in the instructions and the instructions provide no pictures for reference. There is an Allen Key provided but no instructions on how or where to use this tool. Obviously, the durability of this product is simply not there. The accuracy, it may be accurate but it is very difficult to determine since the solenoid is faulty right out the box. The fit is perfect. Sadly, there are videos and reviews from others that have the same issue. Since some have this problem while others do not, you purchase this product on a gamble that perhaps yours may work. *****Update******* Change 1 star to 5 star. I was able to find a YouTube video by FZone Studios that shows how to take apart the solenoid to adjust the spring. Once I followed what the video instructed, the solenoid now works perfectly. What the video recommends is to take apart the solenoid, check for dirt/dust, unscrew the 2 screws to release the plate, then check the spring and stretch the spring a little bit. Reinstall the plate and solenoid and test to see if the solenoid shuts off the CO2. Once I did this, the CO2 shuts off within 5-10 minutes as the seller stated. The product works perfectly now.

## Features

- UPDATED SPLIT-TYPE DC SOLENOID! Newest 12 DC split-type solenoid instead AC models, more safe and stable.
- HIGH PRECISION STRUCTURE-This regulator is designed for the aquarium. High precision fine-tuning easy for co2 to be 1 bubble in 3 seconds. Upgraded sealing material avoid any leak.
- BUBBLE COUNTER AND TOOLS INCLUDED! Together with bubble counter, you can read your co2 flow rate. Bubble counter with check valve function, stop water backflow to bottle. All installing tools included, make all goes easy.
- CLASS 1 MANUFACTURING TECHNOLOGY! Made of hard aluminum alloy, surface spraying treated. Pressure knob and fine tuning knob with knurl.
- 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 | B07QFT69P8 |
| Batteries Included | No |
| Best Sellers Rank | #36,743 in Pet Supplies ( See Top 100 in Pet Supplies ) #2,014 in Aquarium Accessories |
| Color | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (1,197) |
| Date First Available | 24 May 2019 |
| Item Weight | 0.9 g |
| Item model number | 748323719468 |
| Product Dimensions | 14.6 x 7 x 15.2 cm; 0.9 g |
| Quantity | 1 |
| Size | Mediano |
| Special Features | Lightweight |
| Specific Uses | Indoor |
| batteries required | No |

## Product Details

- **Brand:** FZONE
- **Item weight:** 0.9 Grams
- **Manufacturer:** FZONE
- **UPC:** 748323719468

## Images

![FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder - Image 1](https://m.media-amazon.com/images/I/61HIMV-6FWL.jpg)
![FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder - Image 2](https://m.media-amazon.com/images/I/61QA7f7waPL.jpg)
![FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder - Image 3](https://m.media-amazon.com/images/I/61aDcvYn8YL.jpg)
![FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder - Image 4](https://m.media-amazon.com/images/I/61cgmb2Lt6L.jpg)
![FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder - Image 5](https://m.media-amazon.com/images/I/71Nqf4isBbL.jpg)

## Questions & Answers

**Q: Hi, do you sell with 21.8 connector instead of CGA320 ?**
A: Sorry we don't have that.

**Q: Does this regulator fit a standard CO2 tank**
A: Yes it does fit a standard Co2 tank.

**Q: Do i have to buy two if im using a splitter for two tanks or does one control both?**
A: The solenoid with bubble counter only can be used for one tank.

**Q: If the solenoid is not making a clicking sound does that mean it’s not working? C02 will not come through.**
A: Possibly. If you've eliminated the cord and the outlet then it's going to be a problem with the solenoid.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***. on 8 December 2025*

Bel appareil mais dommage que la notice ne soit qu'en anglais.

### ⭐⭐⭐⭐⭐ Review
*by J***N on 23 October 2025*

Buyer beware. This regulator solenoid does not shut off CO2. Soon as the product arrived, I read the instructions and installed the regulator on my 5lb CO2 tank. Right out the box, the solenoid was faulty and does not shut off the CO2. I then waited for over 4 hours to see if the bubbles in the bubble counter would stop. It did not. I then tried uninstalling the regulator and double checking my fittings. That did not solve the problem. I have to manually turn off the bubble counter for the bubbles to stop. I did a leak test. There were no leaks. Since my aquarium is still cycling, I have no livestock except for plants. Should I continue to use this regulator, IT WILL KILL MY LIVESTOCK. The instructions are very basic and provide no problem solving. There are some grammatical errors in the instructions and the instructions provide no pictures for reference. There is an Allen Key provided but no instructions on how or where to use this tool. Obviously, the durability of this product is simply not there. The accuracy, it may be accurate but it is very difficult to determine since the solenoid is faulty right out the box. The fit is perfect. Sadly, there are videos and reviews from others that have the same issue. Since some have this problem while others do not, you purchase this product on a gamble that perhaps yours may work. *****Update******* Change 1 star to 5 star. I was able to find a YouTube video by FZone Studios that shows how to take apart the solenoid to adjust the spring. Once I followed what the video instructed, the solenoid now works perfectly. What the video recommends is to take apart the solenoid, check for dirt/dust, unscrew the 2 screws to release the plate, then check the spring and stretch the spring a little bit. Reinstall the plate and solenoid and test to see if the solenoid shuts off the CO2. Once I did this, the CO2 shuts off within 5-10 minutes as the seller stated. The product works perfectly now.

### ⭐⭐⭐⭐⭐ Review
*by M***E on 24 December 2022*

Es abrir el paquete, conectarlo y empezar a funcionar. No he tenido ningún problema con el kit, que funciona perfectamente, pero posiblemente lo cambie por su versión de dos etapas con dos válvulas de aguja, para que me sirva para dos acuarios. El único inconveniente que le veo a este kit es que no se puede graduar la presión de salida del CO2 y con una presión baja hay difusores que no funcionan. No es el caso de este kit. Dependiendo de lo que uses para diluir el gas en el agua necesitas más o menos presión. Con un reactor de CO2 necesitas poca presión de salida y con un difusor cerámico o de cristal una presión más alta porque el poro que tiene que atravesar es muy pequeño. Yo he utilizado este kit con un difusor y funciona perfectamente. Lo recomiendo.

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-30*