This water-resistant extension cord connector provides a sealed space to protect outdoor and indoor plug connections from the elements like water, snow, rain, dust, and dirt to ensure circuit safety. Rubber seals at both ends conform well to the power cord and two clamps hold the cords tightly in place. The top lid and four extra-durable latches enhance the sealing of the outdoor extension cord safety seal and the four lockable latches secure the safety seal box even if the top lid is broken off.