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Featuring a 1/4" barb connection for secure pneumatic hosing and a single-pole single-throw (SPST) configuration
this is a single stage 1H/1C controller
provided the burner is in good mechanical condition
Durable Construction: Features a stainless steel insertion probe and galvanized steel enclosure to resist moisture and industrial contaminants
white specifically indicates the 1-5 PSI range
Weil McLain 383-500-251 Gasket/Insulation Els PW 17895 Featuring a 1/4" barb connectionThe 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