This Lochinvar Igniter is a key component for the Polaris series of water heaters. The igniter, featuring a narrow base design, is specifically engineered to initiate the combustion process within the heating system. It operates by generating a spark that lights the gas-air mixture, thus starting the heating process. The product is made from robust materials that can withstand high temperatures and prolonged use, ensuring reliable performance and longevity. The Lochinvar Igniter is compatible with various models in the Polaris series, making it a versatile replacement part for these water heating systems.