Baltic CO2-cylinder 33g, bulk

33g CO2 cylinder for inflatable life jackets.
When you buy a new inflatable life jacket, it comes complete with CO2 cylinder and cartridge/capsule trigger, if your inflatable life jacket deploys, you need to reload it with a new gas cylinder and trigger.
How do I know which CO2 cylinder is right for my inflatable life jacket?
Inside the life jacket on the inflatable lung, information is printed on which gas cylinder fits your life jacket.