Pre-Filled CO2 Cylinder 20lb

This is a CO2 cylinder that's certified and already filled with CO2.

You will need a CO2 regulator to use this for your aquariums.
SEE HERE -> CO2 Regulators

We do not refill CO2 cylinders at our store, we buy and re-sale from Soda Mistic .
You can visit there location(s) to refill or purchase cylinders directly.