Stack Flue Sensor, Pentair MasterTemp/Max-E-Therm, Service Kit : 42002-0024S

Stack Flue Sensor, Pentair MasterTemp/Max-E-Therm, Service Kit California Residents WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov This new stack flue sensor comes with instructions on how to retrofit the older stack flue switch (42002-0009), click here to view the insert as a PDF. Replaces 22315300897,42002-0009,420020024S,620974,6290-522,788379784201,STA-151-6279,STA420020024S,