Is this a genuine option

[Haveacamper]

I saw this and wasnt sure whether it was homemade or original. I couldnt seem to link it to an m-code or anything....

NaFe

 

[mattp]

I've has these on Aus busses -might even have some on the garage but that doesn't mean it was a genuine option through

 

[MrBubbleHead]

These are from Australian Sopru camper buses. They put them in from 1975 onwards buses. I think it was to improve air flow for the fridges.