Need help in understanding your serial number? We're here to help.
Water Softener/Filter
The Serial Number location is dependent on your system model. You'll find the number printed on a rating decal either on the inside rim of the tank (under the salt hinges) or on the back of the salt basin near the inlet/outlet ports.
Interpreting the Serial Number
Use the example below to determine the model/part number and manufacture/production date of the system. You can use the date of manufacture to tell how old the system is. The serial number text is small and may be hard to see. It may be helpful to use your phone and take a picture of the serial number and then zoom in to see the numbers. Here's how to read the serial number:
Undersink Drinking Water
The Serial Number location is dependent on the system model. You'll find the number posted on a rating decal either under the top cover or on the outside housing.
Interpreting the Serial Number
Use the example below to determine the model/part number and manufacture/production date of the system. You can use the date of manufacture to tell how old the system is. The serial number text is small and may be hard to see. It may be helpful to use your phone and take a picture of the serial number and then zoom in to see the numbers. Here's how to read the serial number: