Hendrix® Line post insulators are molded from a proprietary blend of gray, track and UV resistant, high density polyethylene. They are more durable and reliable than traditional porcelain insulators. They are also lighter, safer and easier to handle. The HPI-LP-14 is a vertical tie-top design with a standard ANSI F neck and center tap 3/4 in thread size. It meets the electrical and mechanical requirements of ANSI C29.7 and C29.18. It is a direct replacement for high voltage porcelain or composite insulators.