FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder

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.

This works really well on a keg fridge tank that I wasn't using anymore. I would caution to start very low to get the bubble rate correct as this one seems to put more CO2 in the water than those DIY kits that use baking soda and citric acid. This is so much easier, cleaner, and more cost effective long term as well.

I was honestly expecting issues based on some of the reviews—lots of people mentioned leaks—but that hasn’t been my experience at all. I’ve had this FZONE CO2 regulator running on my planted tank for a week now and the seal’s been completely solid. No hissing, no pressure loss, nothing. It’s holding a stable output and the fine control on the needle valve is better than I expected, especially for dialing in low bubble rates. One thing that caught me off guard is that it doesn’t come with any CO2-proof tubing. That feels like a bit of a miss. I already had some on hand from a previous setup, but if this is your first regulator, just know you’ll need to buy that separately. Not a dealbreaker, but something I wish was clearer upfront. All in all, if you’re careful with the setup and you use proper tubing, this regulator delivers. Solid build, no leaks, smooth output. I’d use it again on another tank without hesitation. Pros: – No leaks – Holds pressure well, even at low bubble rates – Solid build quality and smooth needle valve adjustment -Nice design Cons: – Doesn’t include CO2-proof tubing – Instructions could be clearer for beginners, including timing (be sure to turn off your co2 when the lights are off)

It's just so frustrating... I purchased this regulator & got it installed less than a week ago. I've purchased FZONE equipment in the past for other aquariums, and I was very pleased with the overall quality of this regulator when I unboxed it. Set-up was very straight forward, and everything was operating normally during this first week that I've had it. Yesterday I heard a hissing sound coming from the regulator. I could tell right away that the issue was not coming from the main connection between the regular and the CO2 tank...That was fine. When I took a closer look, I thought the issue was with one of the threaded connections from one of the gauges, into the metal housing of the regulator. However, this was not the case either. It turns out that the leak was actually coming from the Outlet Pressure Gauge itself! The metal seam along the outside of the gauge was leaking CO2. I'm hoping that this is a case of just a little bad luck...my past experience with FZONE products has been positive. I'm within the Amazon return window, so I will look to get a replacement. If the replacement unit is trouble-free, I'll gladly edit this review rating to something more appropriate. Review Updates (4/26/25): The Amazon return & replacement went process quick and pain-free (as it usually is). The new regulator was installed and running within about day. I would like to specifically comment about the FZONE Customer Service Team. They were incredibly attentive to my issues, and were eager to help me resolve any problems I was having with the regulator. I had several communications with them throughout the Amazon product-return process. Because I was well-within the normal Amazon return window, I chose that route to expedite things. However, after speaking with them on this issue, I'm confident that FZONE would be there to assist me if I needed any assistance during the products warranty period. Please be sure to provide them with the requested warranty information after purchase. I felt these comments were important, because as a frequent Amazon shopper, comments regarding customer service often makes a difference in my purchasing habits.

Didn't work right out of the box. Cheap Chinese crap. Do not waste your money. Buy a Milwaukee aquarium regulator

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

hi i bought the FZONE Aquairum 12V DC Solenoid for Aquarium CO2 Generator with Bubble Counter and Power Adaptor but after connecting i discovered it had a small leak on the solenoid, after contacting the seller a very kind lady called Brianna promptly handled my problem by sending out a replacement which worked just fine.This Solenoid/Bubble Counter/Power Adaptor may not be the best in the world but for the price and excellent customer service?(brianna) you cant go far wrong.

Produit répondant à mes attentes….

La válvula es muy compacta, y tiene conexión rápida del cableado para facilitar su montaje, desmontaje y mantenimiento. Me dió un pequeño problema pero el vendedor me dió asistencia muy rápidamente y todo genial.

Très satisfait