With you…. not sure where 12v only comment came fromOK, im confused...
I'm trying to understand the difference
The stainless unit with internal cooling says
https://www.vitrifrigo.com/us/us/dp2600ixd4-f-internal-cooling-unit
Under features says
D power (standard)
Dual electronic box 12/24Vdc - 100-240Vac 50/60Hz
The airlock model
https://www.vitrifrigo.com/us/us/dp2600ibd4-f-internal-cooling-unit
Says the same thing under features
Am I missing something?