Thermistors, Sensors, Hi Limit, Tstats

A thermistor is a semiconductor that changes resistance with temperature changes (as the temperature goes up, the resistance goes down). Tstats and High-limits can be found on older spas and have the same functionality as the Hi-limit/Control Thermistors.

Brand: Hot Spring Pre 89 | Electrical: O Ring

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  • O-Ring, Control Thermistor
    Sku: 34878

    O-Ring, Control Thermistor

    Control Thermostat Thermistor o-ring for the 79006 and 78970 thermistors This o-ring is located on the "inlet" side of the heater and is the larger of the two thermistor o-rings For the outlet side of the heater see the part# 34879 o-ring
    $1.74
    Add to cart
  • O-Ring, Hi-Limit Thermistor
    Sku: 34879

    O-Ring, Hi-Limit Thermistor

    High-Limit Thermistor o-ring for the 79005 and 78969 thermistors This o-ring is located on the "outlet" side of the heater and is the smaller of the two thermistor o-rings For the "inlet" side of the heater see part 34878
    $1.63
    Add to cart

Showing all 2 results