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Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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Other parts on the same Replacement for Pentair UltraTemp 460958 Heat Pump
The Pentair Thermistor Defrost Sensor Probe 473665 is a genuine OEM replacement for ThermalFlo Titanium and UltraTemp heat pumps. At 53.5 inches long, this sensor is a vital component in regulating the defrost cycle by monitoring temperature and preventing frost accumulation. By supporting efficient defrosting, it helps the system maintain heating performance while protecting equipment from strain. Constructed with OEM-grade materials, the probe delivers long-term reliability and compatibility. Designed to Pentair’s specifications, it installs easily and restores safe, efficient operation of your heat pump system.
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System Compatibility: Works with Pentair UltraTemp and ThermalFlo Titanium heat pumps, offering seamless OEM integration and dependable function.
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Defrost Cycle Regulation: Monitors temperature conditions to control the defrost process, keeping heating performance consistent in varying climates.
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Prevents Efficiency Loss: Reduces frost buildup that can compromise heat pump output, ensuring the system remains efficient and reliable.
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Extended Probe Length: Measures 53.5 inches, providing the necessary reach for accurate placement and effective performance.
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OEM Quality Build: Manufactured with high-grade materials to Pentair’s standards for durable, long-lasting operation.
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Supports System Reliability: Helps reduce wear on the heat pump by preventing frost-related strain, extending equipment life.
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Authentic OEM Replacement: Designed as a genuine Pentair part, guaranteeing proper fit and reliable operation within compatible heating systems.
- (1) Pentair 473665 Defrost Probe
- Pentair UltraTemp Heat Pumps
- Pentair ThermalFlo Heat Pump Titanium





