The 18" 2-Lead Thermopile without PG9 Adapter from METROPAC is a high-performance component designed for gas control applications. With a lead length of 18 inches, this thermopile provides flexibility in installation while ensuring reliable temperature sensing. Its durable construction guarantees longevity and consistent performance in various heating systems. This model is ideal for users who already have compatible adapters, allowing for a cost-effective solution without compromising on quality. The thermopile meets industry standards for safety and efficiency, making it suitable for both residential and commercial use.