Zodiac R0457400 High-Limit Wire Harness Switch Assembly Replacement for Select Zodiac Jandy Legacy and LXi Pool and Spa Heaters High-limit wire harness switch assembly replacement Fits Zodiac Jandy Legacy LRZE pool and spa heater models 125, 175, 250, 325, 400 Also fits Zodiac Jandy LXi Low NOx pool and spa heater models 250, 300, 400