Yetti fuse

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  I was looking at the 12v fuse panel and saw one marked "Yetti" with a fuse in it.
Any idea what this is?
Thanks

 

[RoadJunkie]

Waste/water tank heaters..."Yeti" winter package. Don't operate the heaters with empty tanks as they will likely melt the tanks.

 

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No Yetti package on the spec sheet, I wonder if it's for the cord reel? I'll pull the fuse later when I get some time.