The Southwire 500 ft. 18-4 Red Solid CU Unshield FPLP Fire Alarm Cable is a high-quality, durable cable designed for security applications. Made of copper with PVC insulation, this cable is capable of carrying up to 300 volts and is manufactured in the United States. With a wire gauge of 19-18 AWG and a total of 18 conductors, this cable is ideal for use in fire alarm systems. Its red color and solid wire style make it easy to identify and install, ensuring a reliable and efficient electrical connection.