Aquarium Glass CO2 Diffuser Atomizer with U Tube Check Valve Suction Cup Premium Version

Looks good and works exactly as described. Easy to install — the suction cup holds it securely to the tank glass. The U-tube check valve prevents backflow, which gives peace of mind. Fine diffusion — the CO2 bubbles are tiny and disperse evenly, helping plants absorb it efficiently. Durable build — it feels solid and well-made, not cheap plastic. Cleaning is straightforward and doesn’t take much time. Overall, a reliable and effective CO2 diffuser for planted tanks.

Very good and they work well but they are really fragile, had to buy 2. Good price for what your getting and look much nicer compared to other brands.

I modified this so I could use yeast instead and it works really well. For my 20 gal the yeast mixture lasts almost 2 months before I have to change it. I have a really hard time remembering to turn it off at night tho

Breaks easily, but works well if handled with care.

No flow through diffuser at all. Not a single bubble. I thought that it was an issue with my tubing set up, but i connected an air stone in place of this diffuser and I got ALL SORTS of bubbles. I am using a total home-brew CO2 reactor; I squeezed the bottle that contains my yeast/sugar solution (where the CO2 is generated) and I had to squeeze the bottle HARD in order to get any amount of bubbles. Product says that operating pressure is around 14 lbs, I connected a pressure guage and it actually takes around 110 psig in order to get any flow through this diffuser. Do not buy this. too many reviews echo my problem with this product. Looks pretty though...

The U shaped part was broken before I ever got to use it. The rest works wonderfully.

It works but is not efficient. Instead of forcing the gas evenly through the porous ceramic disk and producing a bazillion small bubbles like in the photos it just produces streams of large bubbles from just two or three spots. These large bubbles rise very quickly to the surface where they pop instead of dissolving in the water. I had to place a circulation pump where it would blast the diffuser in order to create enough turbulence to allow the larger bubbles some time to dissolve. I’ve had some high quality atomizers from GLA that produced super fine CO2 “mist.” This thing is significantly cheaper and its lackluster performance reflects the price. It’s not an awful product but I won’t be buying from this seller/brand again.

honestly this product for a first time co2 system is a good product. The bubble sizes are good and the design is nice. For the cost you are definitely getting the quality you get which is functional and good. I bought two, but broke 1 while removing the tubing from the diffuser. Overall satisfied with this product. Also you gotta marinate the diffuser in water for the bubbles to come out finer.

Great diffuser works immediately and a good value.

El vidrio es muy endeble. Se rompió el tubo a la primera que traté de quitar el tubo. SIn mbargo el difusor es bonito y funciona muy bien

las burbujas no salían, lo tuve que devolver

When rate is increased, bubbles just get bigger and still diffusing from that same point/section. Also, backflow valve leaks.

I bought two of these diffusers and neither one of them allows any CO2 through them. I even hoo led up to my air line to see if I could get flow and well not a single bubble. I guess I should have bought the more expensive ones. Lesson learned!