This Burnham Commercial Cast Iron Section Assembly is a crucial component designed for use in commercial heating systems. It features a 1/2" limit tapping, which is used to install safety limit switches that prevent the system from overheating. The assembly itself is constructed from durable cast iron, ensuring longevity and resistance to wear and tear. It's designed to facilitate efficient heat transfer and distribution within the system. This product is compatible with specific models of Burnham Commercial boilers, making it an essential part for maintaining optimal operation of these heating systems.