COČ pressure cylinder filled with 750 g COČ gas. This bottle can be use in combination with all normal COČ systems (like JBL, Aqua Medic, etc.). The COČ cylinder has a stand and a cage.https://www.aquaristikshop.com/aquaristic/CO2-storage-bottle-750-g-filled/198802/
- Gabriel V. wrote about COČ storage bottle 750 g filled in 2016:
Perfect size for medium aquarium. Last about 1 year.