What's Included: Motherboard and heater relay board installed in the IQ2020 plastic enclosure and also includes new style temperature sensors thermistors (39204 and 39205) and their o-rings
Replacement for the discontinued IQ 2020 (73223) that was used on all 2001-2009.5 Hot Spring, Tiger River and Limelight spas.
This control box is also the retrofit upgrade replacement for the discontinued IQ 2000 (71382) that was used on all 1997 Hot Spring and Tiger River spas as well as the discontinued IQ 2000 (71485) used on all 1998,1999 and 2000 Hot Spring and Tiger River spas.
Note: This IQ 2020 control box is used as a retrofit on domestic models listed above. old ref: 100-01398-08, PN 0974201,39531