This item is currently out of stock.
Reverse polarity at a campground pedestal can send hot and neutral through your RV's wiring backwards, which is exactly the kind of fault this Southwire transfer switch is meant to catch. It's a 50-amp unit sized for full-size RV electrical service.
Note: detailed installation and wiring specifications weren't available at time of listing; consult the included instructions or a qualified RV electrician for installation.