Ancor 303103 1/4″ x 3″ Black Heat Shrink Tubing

Insulates and protects connections from mechanical abuse, wire pullout and abrasion. Heat activated adhesive lining provides impervious seal to salt water, oil, acids and sunlight as well as providing strain relief. Highest shrink ratio – shrinks to 1/3 original size. Shrinks at 257 degrees Fahrenheit.