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

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.

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

Received in good condition and with speedy delivery.

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.

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.

CO2 diffuser arrived on time , undamaged, I immediately rinsed it off and installed. it works WAY better than the air stone I've been using for CO2. I didn't need to heat my CO2 tubing because it was already stretched out adequately but I can tell that if I tried to force it in the diffuser stem ,I might break the stem. 10 out of 10. Would highly recommend.

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...

Excellent diffuser, the glass "U" that's supposed to go over the wall of your tank is far too narrow to work on a rimmed tank. Beyond that, works great.