YHLZ-PD Thermal Regulating Valve Compatible with Jandy R0589700, R0589701120°F Replacement for Pool & Spa Heater Models 200, 260, 400

["Accurate 120°F Factory-Calibrated Temperature Control.Engineered to maintain a precise 120°F internal water temperature, this thermal regulating valve ensures consistent heater operation and helps prevent overheating regardless of fluctuating flow rates or incoming water temperatures","Direct Replacement for Jandy R0589700 & R0589701.Designed as a drop-in replacement for OEM part numbers R0589700 and R0589701—no special tools or modifications required. Compatible with all Jandy JXi, JXiQ, and ASME series pool and spa heaters","Critical Safety & Protection Component.This thermal regulator valve (TRV) sits inside the water header manifold and serves as your heater's primary safeguard against excessive internal temperatures. By mechanically modulating water flow within the heater, it prevents high-limit faults, burner lockouts, and costly heat exchanger damage—common consequences of a failed thermal regulator","High-Strength Corrosion-Resistant Construction.Built from durable metal alloy specifically selected to withstand extreme temperatures, harsh pool chemicals, and continuous pressurized water conditions. This robust construction ensures long-term reliability and consistent performance season after season","Compatible with JXi Series Pool & Spa Heaters — Models 200, 260, 400.Fits a wide range of Jandy JXi gas pool and spa heaters, including JXI200N, JXI200NK, JXI200P, JXI260N, JXI260NK, JXI260P, JXI400N, JXI400NK, JXI400P, and JXI400PK. Verify your heater model before ordering"]