HDXFHLI400 | Hayward High Limits For HC-Series HDF400 | HDXFHLI001 Pentair max-e-therm Hi Limit Switch and metal-reinforced O-ring

and metal-reinforced O-ring

Built with durability in mind

Perfectly sized wheel: Measures 6

compatible with Jandy JXI200P

HDXFHLI400 | Hayward High Limits For HC-Series HDF400 | HDXFHLI001 Pentair max-e-therm Hi Limit Switch and metal-reinforced O-ringOEM Hayward High Limits HDXFHLI400, formerly known as HDXFHLI001, are essential safety components engineered for use with Universal HC Series HDF400 heaters. These high limit switches are responsible for monitoring the heater's water temperature and automatically shutting off operation if temperatures exceed safe thresholds. This critical function helps prevent overheating, protects internal components, and promotes long term heater reliability. Built