The search feature on the forum is your friend, lots of threads on the subject. Take a look at Truckfridge, the TF130 is their larger unit and I think fits in the same space as the 4cf norcold units. Looks like it’s backordered though, might have to wait or see if one of the van upfitters has one for you. We’ve got this model in our van and it’s super quiet compared to the norcold we had.