Pentair Probe Thermistor Defrost Sensor
Best replacement part for pool heat pump owners needing freeze protection.
This sensor is the unsung hero that keeps your heat pump from turning into an ice block during the off-season. It’s a simple, non-negotiable fix that trades a few minutes of installation for the peace of mind that your expensive heating system won't crack under the pressure of a freeze.
$44.99
at
Bestpoolshop
Who it's for
- Pool owners requiring precise temperature control for efficient heating
- Homeowners looking to extend the lifespan of expensive heat pumps
- DIYers needing a guaranteed fit for existing Pentair systems
Who should skip it
- Users in harsh climates prone to frequent sensor corrosion
- Budget-conscious buyers seeking affordable generic replacement parts
- Novice owners lacking advanced diagnostic tools or technical expertise
Performance breakdown
OEM Compatibility
Perfectly engineered to match original Pentair heat pump specifications.
Freeze Protection
Critical sensor accuracy prevents costly ice damage during winter months.
Installation Simplicity
Straightforward plug-and-play design makes for a quick, hassle-free replacement.
Thermal Precision
Maintains consistent temperature readings for reliable defrost cycle activation.
Build Durability
Robust construction withstands harsh, moisture-heavy pool equipment environments.
System Reliability
Essential component for keeping high-end heaters running through cold snaps.
Key Specs
Weight
1.0 lbs
Manufacturer
Pentair
Compatibility
Pentair UltraTemp, ThermalFlo Titanium, and UltraTemp ETi Hybrid Heat Pumps
Product Type
Probe Thermistor Defrost Sensor
Pool Type Compatibility
In Ground
Manufacturer Part Number
473665
Sensor Cable Length
53.5 inches
Know before you buy
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