Hayward ED2 Thermistor (IDXLTER1930) presairtrol Matching the correct non-positive seal

Matching the correct non-positive seal version helps keep the repair aligned with the valve’s supported design instead of forcing a mismatched internal part

Useful for larger DE filter repair and rebuild work

Because robotic cleaners operate separately from suction or pressure-side plumbing

This jet internal is commonly used when an existing insert is faded

Hayward ED2 Thermistor (IDXLTER1930) presairtrol Matching the correct non-positive sealAccurate temperature sensing is essential for heater control, ignition timing, and safe operation. This Hayward ED2 thermistor is a replacement sensor component for compatible Hayward heater systems that rely on thermistor feedback. When a thermistor is out of range or failing, a heater may display temperature errors, cycle incorrectly, or fail to maintain the desired water temperature. Replacing the sensor with the proper Hayward part helps restore