--- product_id: 538511121 title: "Aquarium Co2 Regulator DC Solenoid with Big Dual Gauge Display and Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder" brand: "fzone" price: "126721CFA" currency: XOF in_stock: true reviews_count: 5 category: "Fzone" url: https://www.desertcart.sn/products/538511121-aquarium-co2-regulator-dc-solenoid-with-big-dual-gauge-display store_origin: SN region: Senegal --- # Bubble counter with check valve prevents backflow Precision fine-tuning for 1 bubble/3 seconds CO2 flow 12V DC split-type solenoid for safer, stable control Aquarium Co2 Regulator DC Solenoid with Big Dual Gauge Display and Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder **Brand:** fzone **Price:** 126721CFA **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your aquarium game with precision CO2 control — don’t let your plants miss out! ## Quick Answers - **What is this?** Aquarium Co2 Regulator DC Solenoid with Big Dual Gauge Display and Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder by fzone - **How much does it cost?** 126721CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/538511121-aquarium-co2-regulator-dc-solenoid-with-big-dual-gauge-display) ## 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:** Enhanced sealing materials and aluminum alloy body with spray treatment guarantee durability and zero leaks. - • **Precision Bubble Control:** Fine-tune your CO2 flow to a perfect 1 bubble every 3 seconds for optimal plant growth and aquarium health. - • **Trusted Quality & Support:** Class 1 manufacturing standards backed by a 1-year warranty and responsive customer service. - • **Next-Gen DC Solenoid Power:** Upgraded 12V DC split-type solenoid ensures safer, more reliable CO2 control than outdated AC models. - • **All-Inclusive Installation Kit:** Comes with bubble counter, check valve, and all necessary tools for a hassle-free DIY setup. ## Overview The FZONE Aquarium CO2 Regulator features a cutting-edge 12V DC split-type solenoid for stable and safe CO2 delivery, combined with a bubble counter and check valve to monitor and prevent backflow. Crafted from durable aluminum alloy with upgraded sealing, it offers precise fine-tuning for consistent CO2 flow at one bubble every three seconds. This all-in-one kit includes installation tools and is backed by a one-year warranty, making it a reliable choice for serious aquatic plant enthusiasts. ## Description Product description Benefits of Using CO2 Regulator in Your Fish Tank Healthy Looking Plant life. A known fact is that fish and plant life need to coexist in balance. The plants thrive on the carbon dioxide that is produced by the fish while the fish feed on plant matter and also take cover underneath. However, too much or too little CO2 will affect both plants and fish. Symptoms of lack of CO2 include plants that have pale leaves and stems, or stunted growth. This also means that the plants will be unable to properly aerate the environment or provide the right nutrients to the fish. Such negative situations are best avoided by installation of a quality CO2 system. Healthy Fish. CO2 plays a vital role in the life of fish. Too much or too little will not only harm the fish but may lead to the untimely death. Fish produce carbon dioxide during respiration. Too much CO2 in the water increases toxicity and affects the pH balance. Unfortunately, unless you are highly skilled in detecting or noticing the level of carbon dioxide, what you will see is sickly or dead fish. A CO2 regulator helps moderate the level of CO2 thus minimizing the negative effects. Combating Growth of Algae. Algae is one of the biggest threats for fish. The compound affects the life of fish by creating unhealthy environment that can cause disease to the fish as well as affecting other plant life. According to studies, carbon dioxide contributes to the growth of algae and also leads to excess ammonia which is dangerous for fish. Installing a system in the fish tank for monitoring carbon dioxide helps combat the negative effect. Fzone dual big gauge DC solenoid CO2 regulator is a great way to inject your aquatic haven Customized aquatic 12v DC split-type solenoid, more safe and stable than AC solenoid, NEVER noisy. Precision needle valve allows you smooth adjust the out CO2 flowrate, bubble counter allows you easy read flowrate. All tools included, easy to operate and assemble with all the tools included. What's in package? Regulator Instructions Sealing ring replacement Hex wrench Bubble counter with check valve Fzone Regulator Upgraded Version Solid made of all-metal material, durable and sturdy Modified Aquatic Solenoid for a silent operation Sealing technology assures no leaking issues Easy install, all tools and materials included to get started Output pressure pre-set, not adjustable. tank inner pressure affect output pressure. Inner 600-1100psi，output 50-75psi. Suitable for north American CGA320 fitting. (does not fit paintball tanks, separate adapter required). It still needs to take 3-5mins to release all of the gas remained in the regulator, when the solenoid valve is power off. OR you can release the gas quickly by control micro-adjustable valve. DC 12V solenoid valve, high Performance, cool operating temperature ● Solenoid included, you can easily plug the solenoid into your timer to create a daily automated on/off schedule coupled with the lighting system. ● Customized aquatic 12v DC split-type solenoid, more safe and stable than AC solenoid. ● Low power consumption: 2.5 watts only. keeps the solenoid cool to the touch during operation. ● Modified solenoid to prevent overheating, buzzing, and allows the valve to open and close smoothly. High precision needle valve with bubble counter, easy to control your CO2 rate ● Precision needle valve included. The CO2 flowrate allowing to go as slow as 1 bubble per 5 seconds with our high precision needle valve. ● Bubble counter has a check valve to prevent any backflow of fluids to the solenoid. Upgraded Sealing Material Sealing material and structures have been updated to withstand temperatures between -45 to 90 degrees Fahrenheit. We have included extra sealing rings. Dual gauge for both inner tank and output pressure Dual 1.6inch gauge indicates working pressure and cylinder pressure. Left gauge shows output pressure. Right dial indicates CO2 cylinder’s inner pressure. Solid Meterial Used Regulator body is made of aluminum alloy. Gauges are made of stainless steel. Needle valves are made of copper electroplated to allow continuous usage without worrying about rust. Review: Régulateur CO2 - Bel appareil mais dommage que la notice ne soit qu'en anglais. Review: Buyer be aware******Update******* - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | FZONE | | Item form | Gas | | Item weight | 0.9 Grams | | Manufacturer | FZONE | | Number of Packs | 1 | | Unit count | 1.0 Count | ## Product Details - **Brand:** FZONE - **Exterior finish:** Aluminium with spray treatment - **Inlet connection size:** 1.6 Inches - **Item dimensions L x W x H:** 14.6 x 7 x 15.2 centimeters - **Material:** Aluminum ## Images ![Aquarium Co2 Regulator DC Solenoid with Big Dual Gauge Display and Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder - Image 1](https://m.media-amazon.com/images/I/61cgmb2Lt6L.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 ### ⭐⭐⭐⭐⭐ Régulateur CO2 *by G***. on 8 December 2025* Bel appareil mais dommage que la notice ne soit qu'en anglais. ### ⭐⭐⭐⭐⭐ Buyer be aware******Update******* *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. ### ⭐⭐⭐⭐⭐ as discussed *by A***Y on 29 April 2026* working well ## Frequently Bought Together - FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder - FZONE Aquatic CO2 Glass Drop Checker PH Momitor for Aquarium Plant Fish Tank Test CO2 Kit - Fzone Neo CO2 Diffuser with Customized Ceramic from South Korea(L-24mm) --- ## 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.sn/products/538511121-aquarium-co2-regulator-dc-solenoid-with-big-dual-gauge-display](https://www.desertcart.sn/products/538511121-aquarium-co2-regulator-dc-solenoid-with-big-dual-gauge-display) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-18*