Description
👍【Package contains】: 18 x check valves, 6 x air stones, 12 x suction cup clips, 12 x I-connectors and 12 x T-connectors, complete tools match well with your fish tank. 👍【Check valve】： the check valve is great for aquarium and fish tank; You can put it in the airline tube between air pump and aquarium water to prevent water back into the air pump during a power outage. 👍【Bubble release air stones】: approx 19 (D) x43mm (H) /0.75 x 1.7inch, they are durable and can produce fine bubbles continuously
