Infusion systems for pumping fluid into a body of a user, and methods for providing infusion systems, are disclosed. The infusion systems include an infusion pump, wherein the infusion pump comprises an infusion pump housing including a cavity. A fluid storage is removably inserted into the cavity of the infusion pump housing wherein, the fluid storage comprises a cartridge and an adapter connected to the cartridge such that the adapter encases the cartridge, and an infusion set is removably connected to the fluid storage.
