I have a great alternative for you. Unfortunately, the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp # PD4060K is not confirmed to work with your Parallax model 7345. In addition, the 60-amp power could potentially damage your 45-amp requirement.
With that being said, we do have a converter that is the direct replacement for your model 7345: the Replacement Converter for Parallax/Magnetek or WFCO RV Power Centers - 45 Amp # PD4645V. This is the part... view full answer...
From research online it appears you probably have a Coleman Mach 8 air conditioner unit, I suggest you verify this before ordering by removing the shroud and looking for information on tags inside the unit itself. My recommendation is the Furrion Chill Replacement Air Conditioner for a Coleman Setup, # FR42PV. It is a really great option, this is one of the quietest and coldest blowing AC units out there and since it was designed to install in place of a Coleman unit, the install will be... view full answer...