Etna TL-P-0250 Copper Heat Exchanger Tube Assembly Replacement for Zodiac Jandy 250 Lite2 LD, LG, LJ Pool and Spa Heater R0018103 Direct Replacement Built with ASME commercial grade copper Fits Zodiac Jandy Lite2 LD, LG, LJ pool and spa heaters model 250 Includes o-rings, baffles & hardware