This Lochinvar Venturi Valve is a specialized component designed for use in specific models of Lochinvar pool heaters. The valve, crafted from high-quality materials, functions as a critical part of the gas delivery system within the heater. It operates by controlling and optimizing the mix of gas and air that fuels the combustion process. This particular model is compatible with PF/PB1501-1701 series Lochinvar heaters, ensuring a precise fit and optimal performance. The Venturi effect, which this valve utilizes, allows for efficient regulation of fluid flow within the system. It is essential for maintaining safe and effective operation of your pool heater.