The 1-3/8" ID x 1" Wall Self Seal Rubber Pipe Insulation by Braxton Harris is engineered for optimal thermal protection in plumbing systems. This insulation features a self-sealing mechanism that allows for quick and easy installation, ensuring a tight fit around pipes. Each carton includes 10 pieces, making it a practical choice for both DIY projects and professional installations. The durable rubber construction offers superior thermal resistance, effectively minimizing heat loss and energy consumption. With a wall thickness of 1", this product is compliant with industry standards, making it suitable for various applications.