CS4413 0-4 yrs Cosi, Aero, Neon II..... Rachel S Updated January 30, 2018 01:22 Follow The CS4413 models are the new updated versions of the original Cosi Compact/Neon 0-4yrs Convertible Carseat. Further information about individual models can be found here; CS4413CC Cosi Compact II CS4413BBB Aero CS4413NW Neon II CS4413WN Ranger Related articles CS4413 Series Instructions CS9013 Series I Instructions What does the model code / model name on my seat mean? How do I know which model of restraint I have? I'm looking for an instruction manual... Comments 0 comments Article is closed for comments.