Zodiac R0336100 75 PIS Polymer Pressure Relief Valve Replacement for Select Zodiac Jandy Pool and Spa Heaters Pressure relief valve replacement Fits Zodiac Legacy LRZE, LRZM pool and spa heater models 125, 175, 250, 325, 400 Also fits Zodiac Jandy LXi, LXi Low LOx pool and spa heater models 125, 175, 250, 325, 400 Compatible with Zodiac Jandy LX/LT, LX/LT Low LOx pool and spa heater models 250, 400 Made of polymer, 75 PIS