This Burnham Commercial Injection Shield is a specialized component designed for use in multi-section heating systems. The product, identified by the number 9, indicates its compatibility with nine-section systems. The primary function of this injection shield is to protect the system from potential damage caused by high-pressure injections. It achieves this by effectively distributing the pressure across all sections of the system, thereby preventing any single section from bearing an excessive load. Made from durable materials, this injection shield ensures longevity and reliability in commercial heating applications.