McDonnell & Miller 342200 Strainer Assembly and Gasket 30067439-890 the SP155-011 is the updated

the SP155-011 is the updated

and neutral fluids

mount the 8-foot copper probe in an area with high airflow that represents the average ambient temperature of the space being controlled

Can this relay replace an S1-19082-020 or S1-19082-031

If the flame sensing rod is soot-covered or the porcelain insulator is cracked

McDonnell & Miller 342200 Strainer Assembly and Gasket 30067439-890 the SP155-011 is the updatedThe McDonnell & Miller 342200 (Model SA51 9) is an OEM strainer assembly and gasket designed for integration with specific boiler water level controls and feeders. This critical maintenance component is engineered for use with 51 Series mechanical water feeders, including the 51S and 51S 2 combination units. It is also the correct replacement assembly for 25A liquid level controls and 851S series make up water feeders. By effectively filtering debris