Several manufacturers produced small CO2 kits for beginners, which ran with disposable CO2 cartridges. Then came a veto from the supervisory authorities because the CO2 cartridges did not meet with sufficient legal approval. The JBL development department wanted to help all owners of these CO2 kits (e.g. JBL ProFlora u201, but also Dennerle, Tropica, Colombo) and, together with a well-known supplier, has developed cartridges which meet the legal approval.
The new 95 g cartridges can be recognized by the imprint π (Pi) directly on the cartridge body. The outer pack remains unchanged. The cartridges are individually packed.