The main technical difference between the Dometic CombiCool ACX3 40 and the ACX3 40G lies in the type of gas operation:
The ACX3 40 can be operated with 12V, 230V and gas, but uses gas via a fixed gas cylinder with a higher gas pressure of 50 mbar. The ACX3 40G offers the added flexibility of also working with gas cartridges (220g), making it ideal for mobile employees when a larger gas cylinder cannot be used. It has an integrated holder for these cartridges and only requires 30 mbar gas pressure.