Raychem FrostGuard preassembled self-regulating heating cables are designed for residential and commercial metal and plastic pipe freeze protection and roof and gutter deicing applications. 120 V FrostGuard cables are available in 6, 12, 18, 24, 36, 50, 75 and 100 foot lengths, and each comesassembled with a 6-ft power cord and 3-prong, grounded, lighted plug to show the system is on. 120 V FrostGuard cables are ideal for smaller jobs such as roof and gutter deicing on porches and overhangs, as well as for pipe freeze protection on metal or plastic pipes up to 2-1/2 inches in diameter.240 V FrostGuard cables are available in 6, 12, 18, and 24 foot lengths and each come assembled with a 6-ft power cord for terminating in a junction box. Due to their short lengths, 240 V FrostGuard cables are designed only for pipe freeze protection applications on pipes up to 2-1/2 inches indiameter.