- VIVOSUN Welding Gas Regulator Flow Meter, Argon/CO2 Regulator, Leak-Proof Argon CO2 Pressure Gauge with Universal Multi-Interface, Suitable for MIG TIG Welding Machines

This brand works so much better if you need a regulator that works well get this one!

It works just not with an aquarium. My mistake for thinking this was for aquarium use. Works as intended. Cant leave a negative review for my mistake.

This one is the exact same as the $90 Titan. I ordered a Titan CO2 regulator from a hydro shop thinking price=quality, only it started leaking, mostly just at the beginning of fresh tanks, but over 3 tanks it got worse and I couldn't get it to stop. I didn't have time for the run around and the warranty policy offered them any reason to refuse(if you turn the flow up past halfway warranty void). So I decided to 1)order a replacement, 2)tear into the Titan, see what I can see. Being Prime day, the Vivosun was only $32, as I ordered it I was thinking, man, that looks exactly the same as the $90 Titan. I fixed the Titan, better than new(or better than when I got it, it didn't seem new) and got this one today. See for yourself, one has a Titan sticker, one says Vivosun on the tank pressure gauge, other than that...identical. Oh, and this one was new. I would keep it as a spare, but I called Titan to ask a question and the tech warranty'd mine, but asked me not to ever work on them again, didn't even want it back, told me to cut the cord. I mean, cool, but what was I supposed to do in the meantime, that one won't be here for a couple weeks and I've got hungry plants. Get yourself some Teflon tape and seal up every joint you can, your tank will last longer.

Failed in 6 months, started leaking around the flow dome. Unable to use now.

Work perfectly

These work well.

I have seen a few bad reviews and I would like to set the record straight. 1. With all compressed air products, anything that can unscrew should have Teflon tape (example: the plastic reading tube) now, I understand why they didn't, it unscrew so you can adjust the internal glass meter so it can be read in the position you have the meter. Once you do that, put 4 wraps of any quality Teflon tape around the threads and carefully hand tighten it back. 2. Please please please use the plastic/fiber gasket to attach the tank. It is a necessary piece to prevent leaking of the gas. 3. FINAL AND MOST IMPORTANT STEP!!!!! Get a bottle, water, squeeze tip, trigger spray bottle etc, mix up a decent amount of a very soapy solution (you can test this with a straw, or any smaller tube, dip it in the solution and try to blow bubbles, if you can't add more soap and repeat) and once there is enough soap to retain bubbles, liberally spray or pour the solution over the connection to the tank, the plastic Guage, and all connections with the tank on, regulator dial closed and the solenoid valve open(powered). If the tank/connections are blowing bubbles, you have a leak. If the are no bubbles anywhere, with the above method, you have sealed the regulator to the tank and CO2 should not leak out where it is not supposed to. Steps 2 and 3 should be done everytime you change the CO2 tank.

Needed to pressure test a mini split install, and it did the job of metering the right pressure out. I'm happy with it.

Works as advertised . Buy a co2 defuser then it will fog rather than stream from tubing

It’s probably my fault for not reading the listing properly but why would you sell a 110v American plug product in UK? literally the wrong voltage and connection type. If I got a converter it still wouldn’t work due to frequency 50/60hz. Waste of bloody time!

co2 très bon régulateur

Works well but develops a leak after about 6 months. I'm using this outside for a pool co2 injection system. I'm on my second unit as they both developed a leak betwen the brass housing and the clear plastic sight tube. I was able to fix it by using plastic epoxy under the lip of the sight tube. I roughed up the plastic and brass using scotchbrite pads -No issues since. The solenoid seems to be solid. Make sure you use a check valve and replace yearly! I had one leak and destroy the valve.

We've bought multiple Vivosun products including the dreaded house-burner oscillating fans. The fans were the only thing that Vivosun has made that are garbage. I was hesitant to purchase this product however, given the price and Vivosun's great customer service I figured I would try it out. So far it's worked perfectly at half the cost of the more well-known manufacturers. The solenoid that opens and closes the valve sounds pretty intense. It snaps quite loudly compared to the other regulator we have but it's still working great for us.