2003/2006 Hot Spring Highlife Model HILF is indicated by the letter in the serial number. for example.   Serial Number HILF-3E2015 the serial number would read HILF is model 3 third quarter E year(2003) and 2015 is the unit number made. This model was only made for one year. It was a " limited addition model" Serial Number HILF-3H2015 the serial number would read HILF is model 3 third quarter H year(2006) and 2015 is the unit number made. This model was only made for one year. It was a model from Costco Only ..
Read more