Wraparound Insulator - High Density Plastic (No Metal Insert)

These insulators offer all the great qualities and convenience of wraparound insulators with one new improvement - non-metal, high-density polyethylene reinforcement. This alternative reinforcement is stronger than the classic aluminum insert on other models and eliminates any concerns of arching and shrinking. Backed by a 30-year guarantee. Available in black and white as well as various lengths.