Zodiac R0456900 Hot Surface Ignition Control Replacement for Select Zodiac Jandy Legacy and LXi Pool and Spa Heaters Hot surface ignition control replacement Fits Zodiac Jandy Legacy LRZM 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