Measuring 21 inches

if it reads below 13k ohms or shows an open circuit

Replacing the board with a Rheem-Ruud 47-102686-81 restores proper sequencing

Accurate Setpoints: Specifically calibrated with a 0

Can I reuse my existing O-ring during a float inspection

Hydrolevel EL1214-R Sensing Probe Els PW 17895 Measuring 21 inchesIntegrate the Hydrolevel EL1214 R Sensing Probe into your next boiler service to ensure reliable low water cut off (LWCO) functionality. This Hydrolevel 45 224 assembly features a 3 4" NPT connection and is built with a standard ceramic sensing probe designed for high performance conductivity in hydronic systems. With a 2 7 8" inside dimension, this probe provides accurate liquid level detection for both residential and commercial hot water boilers