- Titanium heating element
- Solid state controls to eliminate noise
Details: Raypak 017121 ELSR00051T1 5.5 kW 240V 18,767 BTU Electric Spa Heater. The E3T titanium heater is the latest technology in pool and spa heating. The E3T heater is built with titanium heating elements and 316L stainless steel to withstand extreme water conditions, including salt water pools.