Weil McLain 383-500-251 Gasket/Insulation Els PW 17895 this is a single stage

this is a single stage 1H/1C controller

Safe Power Distribution: UL Listed Class 2 rating ensures compatibility with low-voltage wiring codes and power-limited circuits

The Reznor 147166 Spark Ignitor is a critical OEM replacement part designed for high-performance ignition in commercial and industrial gas-fired heating systems

white specifically indicates the 1-5 PSI range

The Weil McLain 512-200-000 is an OEM regular stainless tube burner engineered for high-performance combustion in Weil McLain EG and EGH series boilers

Weil McLain 383-500-251 Gasket/Insulation Els PW 17895 this is a single stageThe Weil McLain 383 500 251 Cover Plate Gasket Insulation is a critical OEM replacement component designed to maintain the pressure vessel seal on high efficiency Ultra Gas Boilers. This specific part is the manufacturer designated direct replacement for the legacy 591 200 000 model, ensuring a precision fit during routine heat exchanger teardowns or burner maintenance. As a veteran grade boiler replacement part, this combustion chamber insulation