Features: * Ground Fault Circuit Interrupter breakers protect people from electrical shock * Offer protection for entire branch circuits such as bathrooms, kitchens, patios, fountains, pools and other areas where damp location shock hazards may exist * 1 inch per pole * 120 volt * 10,000 AIR What"s In The Box: * Square D HOM120GFICP 20-Amp 1-Pole Home GFCI Circuit Breaker Plug-In Homeline