The Frost King Pipe Wrap Insulation Tape is a flexible fiberglass material designed to insulate pipes with a 3″ outer diameter. It comes in a 25-foot length and 1-inch thickness, making it suitable for various plumbing applications. The round shape and flexible feature make it easy to wrap around pipes for insulation. Compatible with the Frost King SP42X model, this product from the trusted brand Frost King provides efficient insulation to help maintain optimal temperature levels in piping systems.