Zodiac R0023000 150 Degree F Hi-Limit Switch Disc Replacement Kit for Select Zodiac Jandy Pool and Spa Heaters Hi-limit switch disc replacement Fits Zodiac Jandy Legacy LRZE, LRZM and Lite2 LD, LG, LJ pool and spa heater model 125, 175, 250, 325, 400 Also fits Zodiac Jandy LX/LT and LX/LT Low Nox Spa Heater models 250, 400 150 Degree fahrenheit temperature