This Lochinvar Venturi is a high modulation component designed for use in various heating systems. The venturi's primary function is to regulate the flow of gas or air within the system, ensuring optimal combustion and energy efficiency. It achieves this by creating a pressure differential, which allows for precise control over the flow rate. Made from durable materials, it can withstand high temperatures and pressures typically encountered in heating systems. The Lochinvar Venturi High Modulation is compatible with specific models of boilers and water heaters from the same manufacturer.