Hot Spring Heater #73790

No-Fault PDR titanium heater comes with thermistor o-rings.  This model has a double-pass design, which helps with the heating of the water. A replacement for all Hot Spring Spas, 1995-current, that are 1.5 / 6kW. 73790 Heater is a replacement for the following models: Make Model Date Range  Hot Spring Grandee   1995-2002  Hot Spring  Vanguard  2001-2002  Hot Spring  Jetsetter  1995-2002  Hot Spring  Prodigy  1995-2002  Hot Spring  Sovereign  1995-2002  Hot Spring  Highlife  1995-1996  Hot Spring  Classic  1995-2000  Hot Spring  Landmark  1997-2002 Tiger River  Bengal 1997-2002 Tiger River Siberian 1997-2002 Tiger River Sumatran 1997-2002 Tiger River  Tondi 1995-1996 Tiger River  Khyber 1995-1996 Tiger River  Manora 1995-1996 Tiger River  Tondi PH220 1996 Tiger River  Manora MH220 1996