Size: Approx. 3.3x3cm(1.30x1.18inch); Material: Made of high quality plastic, very durable and can last a long life.
Features: Can be directly screwed to the carbonated beverage bottle to use,no air leakage, very durable and airtight.
Function: Can add or control the amount of CO2 which is available to your fish and plants, add essential CO2 into your aquarium water.
Application: Easy to install, and suitable for all kinds of DIY reactors.
After Sales Service: Any issues concerned after receiving or use, please contact us freely, we will try to issue you a reasonable solution. The customer's satisfaction is our priority goal.