The CTM CX Marine Air Conditioning Unit works as an excellent replacement for the Dometic DEG and DEU. There are some specs that should be taken into consideration when replacing one of the units previously mentioned. It is also a good replacement unit for the Cruisair RX models, but in the case of the RX units, you will need to replace the evaporators (being that they use R22 / R417A gas and the CX unit and evaporators use R410A)

- Because the CX split units come with the Universal Control board, it will work with the controller you currently have.

Supported controllers include: SMXir, Passport I/O (firmware: ), Smart Touch, Elite II (firmware: ).

- Waterline connections should be the same as the unit you are replacing, the CX unit has a standard 5/8" water connection.

- Dimensions wise the CTM CX is very similar to the above-listed Dometic and Cruisair split gas units, so there shouldn’t be any issues when replacing your current unit with the CX. However, it is recommended that you double-check your current installation space and the CTM CT’s specs in order to avoid any issues when installing.