[sourdough]

Get one...and a good one, not the cheaper "surge" protectors. Get the upper end EMS "system". If you are about to go get the inline protector - it's what I've used for years and I'm extremely happy with it. Electrical current is something you just can't see, unlike water. The current can be in many different states and some of them can terminally damage the equipment in your trailer. You have invested a large sum of money into the trailer and much of that is in electrical devices. Many rv "parks" have poor or questionable power. It only makes sense to get the best device you can to protect your trailer....IMO.