ISTA Ceramic CO2 Diffuser 20mm Silicon Suction Cup - Aquarium Plants Atomizer Reactor

Cheapest and the best product in market.

Bubble counter to be attached separately

This is not the good product many co2 gass just leak.

Works great, included suction cup is useless, so I just added a different one.. I had to have pressure slightly higher at about 60psi 2bps to get diffusion but that's fine.. optimal diffusion lasted for about 2 months and then it got plugged up.. I'm sad it's non servacable and had to buy a whole new unit instead of a disc.

Bubbles come out huge...maybe mine is defective but my cheap glass diffuser makes way better micro bubbles...way to much money to not work better than a $4 one... Time wasted putting it in the tank and taking it out...now I have to send it back and wait weeks for a refund... disappointed wish the reviews rang true to me.

One of the best diffusers I have used. I have recommend this to few of my friends who are in the hobby.

I would recommend these, the quality is good for the price.

Does the job so far, good quality diffuser.