Rated 1.5 out of 5 by 2
Rated 2 out of 5 by Edmp I agree with the other reviewer that this is a poor product. But if you tightly tie the air tube leading to the air stone or filter that works , it will force the air to be divided between the working air source and the non-working one. If you want to keep this product, this is one solution.
December 31, 2014
Rated 1 out of 5 by fishtanklover piece of junk
this product is horrible I got it so I could have it power a air stone and my filter because it runs off a air bubbles so I plugged it in and all the air went to the air stone and not the filter so I switched it and it still couldn't work so I put it on a more powerful bubbler and it still didn't work so I returned it and got some fish
December 15, 2014