Hot Springs Watkins 1.5kw Titanium No-Fault HeaterDESCRIPTION: Hot Springs Spas Watkins 1. 5kw No Fault Heater. Here at Spa Parts Pro we only sell quality products that we have tried and tested over the last 15 years working as spa technicians. So you know what you buy from us is good quality. DETAILS: 1. 5kw at 240volt, titanium element. Labeled SSE 00 OH OF. *NOTE: If this heater is replacing one of the older models with pressure, you will need to purchase a SD 6560 857 to install after the heater.