February 07, 2013
2005/2006/2007/2008 Grandee Model GG
2005/2006/2007 Hot Spring Grandee Model GG is indicated by the letter in the serial number. for example.
Serial Number GG-3G2015 the serial number would read GG is model 3 third quarter G year(2005) and 2015 is the unit number made.
..