Aquarium Non-Return Check Valve for Oxygen Pumps

The product was purchased on March 10th and arrived on May 28th (in 2.5 months). All the information is solely in Chinese, with no description of ingredients or instructions for use in another language. After administering one pill each morning to the cats, no effect was observed. The experience was disappointing.

Well, my comment is a complaint because they are past their expiration date since December 1st I say that you will have to send me a jar that is not expired and answer me because I have been waiting for a long time

The hooks are useless, they don't sit firmly enough on the door to hang. The width should be a maximum of only 1.5 cm and not 4 cm like yours that I received from you. . So in plain German, junk. Kind regards René Dibkowicz

I would advise everyone not to buy this product 👎👎👎👎 because it really kills the fish, clouds the water, and the size doesn't correspond... On the 3rd day of use you will record major fish losses.... I don't know what to do to stop thism

I received my order but I am not satisfied and it is not strong enough for my taste. On the collar, the hole for attaching the leash is made of plastic, and the carabiner of the leash is also made of plastic. I doubt its strength.

Absolutely cheap product. Looks like in the picture and serves its purpose, but the price-performance ratio is 0.0 .... worth a maximum of 30 Euros. Would never order again.

I am really not satisfied with this purchase, the photos showed me several rings and I only got one piece, which is really expensive by 11 USD. I don’t recommend it to other buyers.

My Sphynx is a bit wary of new things, but I'm convinced that as soon as he feels the warmth he won't let go of it anymore! It works very well Thanks so much 😽😽😽