[RodeWorthy]

Call Trailair Service (800) 998-4238. That is where I got mine. They are affiliated with Lippert. I had no trouble getting warranty. I take that back - I had to prove the units failed - they were sceptical one could fail. But I did get the two failures covered under warranty. The spare I purchased outright. I won't quote the price here but it is reasonable and not that bad considering the peace of mind I have knowing I will not have to resort to wire swapping again.

Trailair has no Part No that I know of. A number on a label on the unit itself is 214-1231-A61-06. If you do order from Trailair have Kara give you Ron's phone number so you can call him and make sure he sends you the marine grade version as described above. They have multiple versions in their shop.