The 1-3/8" ID x 1" Wall Self Seal Pipe Insulation by Braxton Harris Company is engineered for optimal thermal performance. Each carton includes 12 pieces, making it a practical choice for various insulation projects. This product is made from high-quality materials that provide excellent thermal resistance, helping to minimize energy loss and prevent condensation. The self-sealing design allows for quick and easy installation, ensuring a tight fit around pipes. Ideal for both residential and commercial use, this insulation complies with industry standards for safety and efficiency.