Need help?
Adding CO2 to the aquarium can be complicated, but with the right accessories it becomes relatively easy. Also when you need to attach multiple aquariums to one system, you can find everything you need here.
Handy open-end wrench for tightening or loosening the CO2 pressure regulator on a CO2 bottle. Equipped with a handy bend for more convenience and an eye to hang the wrench in the aquarium furniture.
length: 175mm
For nut: 30mm