This Burnham Commercial Grooved Orifice is a precision-engineered component designed for use in various gas applications. It features a #57 size opening, which refers to the diameter of the hole in the orifice. The grooved design of this orifice allows for enhanced gas flow control, ensuring optimal performance and efficiency in the connected system. Made from durable materials, it is built to withstand high pressures and temperatures typically associated with commercial gas systems. This product is compatible with a wide range of Burnham Commercial's heating equipment, making it a versatile component in maintaining and upgrading these systems.