Has a protective, waterproof outer jacket suitable for wet conditions such as downspouts, roof drains, or marine applications. For use on metal and plastic pipes up to 8 inches in diameter, in wet or dry locations only. Also for use in roof/gutter de-icing applications. This product MUST be used with one of two available Power Connection Kits. The H900 Hardwire Power Connection (includes end seal) is used for hardwiring directly into a junction box (not included). The H908 Plug-In Power Connection with built-in ground fault protection (includes end seal) is used for plugging into a standard 120V three-prong, grounded electrical outlet. Note: The National Electrical Code requires the use of ground-fault protection of equipment to reduce the risk of fire caused by damage or improper installation. All installations must also comply with applicable local codes and standards.