Hydrolevel Part #48-3250-58 - 48'' Replacement Sensor For 3150/3250 Hydrostat

Perfect fit

This sensor was exactly what I needed. It’s a newer model than what I had in my boiler, but it fits more snugly in the well. The old sensor was plastic/rubber with a metal clip. This new sensor is all metal and seems to be of higher quality. Time will tell, but my boiler and I are happy so far.