1The refiner can make the CO2 bubbles more uniform, better diffuser efficiency. 2There are there sizes for you to choose from, meeting your different needs. 3Designed with bubble recording function, easily accounting the amount of the added CO2. 4Adopt fine workmanship, sturdy and durable, long service life, not easy to damage. 5Small size and lightweight, practical CO2 refiner, adding beauty to your fish tank.
