Ours is an ESCO ES50M-65N, PPL has it for 188 bucks and they show an alternative for $174
The ESCO's are pretty common.
I've bought LOTS of stuff from PPL they usually can't be beat on availability or price.
Automatic Transfer Switches - PPL Motor Homes
Are you running any kind of voltage/polarity protection? now would be the time to wire one in.
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Don R.
'04 Haulmark (M42386) 42', 2 slide, 10kw -
Pictures
'04 F350 CrewCab Longbed 4x4, 50g aux tank & gear vendors dbl over