1998/1999/2000 Classic Model F

1998/1999/2000 Hot Spring Classic Model F is indicated by the letter in the serial number. for example.

Serial Number  F-382015 the serial number would read F is model  3 third quarter 8 year(1998) and 2015 is the unit number made.

Serial Number  F-3A2015 the serial number would read F is model  3 third quarter A year(1999) and 2015 is the unit number made.

Serial Number  F-3B2015 the serial number would read F is model  3 third quarter B year(2000) and 2015 is the unit number made.