This replacement surge protection module incorporates two decades of Hughes Autoformer technology proven in thousands of RV electrical installations. It’s engineered specifically for Power Watchdog PWD50-EPO units and safeguards your RV’s appliances against the voltage surges that commonly occur at campgrounds and RV parks. The design combines reliability with straightforward maintenance.

• Compatible with PWD50-EPO Power Watchdog units
• Patented Autoformer protection technology
• Proven 20+ year track record
• Limited lifetime warranty