2PCS 360 Degree Rotatable Check Valves Set Low Noise For CO2 Systems Carbon Dioxide Diffuser Fish Tank Accessories

very small good for small fry

Good but noisy

SUPER PERFECT.

Thanks

Thanks

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I confirm that this product is consumed by fish but the manufacturer lies about the weight and JOOM takes no action ... bringing testimonies that there are irregularities they look for hundreds of reasons not to refund the money... Do not purchase these products so that JOOM understands that by lying they have more to lose....🤬 I personally no longer buy this product as a sign of protest. JOOM shame on you and for learning. These 2 customer service assistants Anastasia and Anton if they serve you, ask for other assistants from the start because they ask you to open the package and take a photo inside it and then accuse you of taking some of the product and for this reason they do not refund the money... Shame on you Anastasia, Anton and JOOM... Let the whole world know that you lie to people.....🤬

JOOM lies to people with their products... They promise 98 g but it comes 85 g but when you weigh the net product it only has 81 g respectively each customer is deceived with 17 g and for 1000 buyers they make over 17 kg of product with which they deceive 20 more buyers👎🏻👎🏻👎🏻👎🏻 JOOM the most lying online seller... 👎🏻👎🏻👎🏻👎🏻