The answer to 'how long does GFCI outlet last' is that a properly installed and maintained GFCI (ground fault circuit interrupter) outlet can last for 10-15 years on average. GFCI outlets are designed to detect ground faults and quickly shut off power to prevent electric shock, and they are required in many areas for outlets near water sources like bathrooms, kitchens, and outdoors.
However, GFCI outlets can wear out over time due to repeated use and exposure to the elements. It's recommended to test GFCI outlets monthly by pressing the 'test' button, and to replace them every 10-15 years or if they fail the test. Proper installation and avoiding damage to the outlet are also key to maximizing its lifespan.