Frost King 6' Self Sealing Rubber Tubular Pipe Insulation for 1/2" pipe. This 6-foot long insulation is designed for plumbing applications and offers a convenient self-sealing feature for easy installation. 1/2" wall provides effective insulation against heat loss, helping to maintain desired temperatures in your plumbing system. Made of durable rubber, this insulation is resistant to moisture and corrosion, ensuring long-lasting performance.