Leviton 8899-I GFCI Receptacle 20A SmartLock Outlet, Ivory Increase Safety in Your Home High-Quality Leviton Product Back and side wired Impact-resistant thermoplastic construction Feed-through protection for receptacles downstream Fast acting: trips in 0.025 seconds Protects all outlets on the same circuit Compliant with 2003 standards for GFCI receptacles TEST and RESET functions work together so that a tripped GFCI cannot be reset if GFCI circuit no longer provides ground fault protection RESET button is blocked if GFCI protection has been compromise