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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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On the Pentair MasterTemp 400 460736 Heater diagram
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Other parts on the same Pentair MasterTemp 400 460736 Heater
The Pentair Natural Gas Heater Combustion Air Blower Kit, model 77707-0253, is designed specifically for use with Pentair MasterTemp and Sta-Rite Max-E-Therm pool heaters. This essential component ensures optimal performance by efficiently managing the combustion process. Included in the kit is a single volt blower adapter, making it compatible with various models and simplifying installation. It is crucial for maintaining the heater's effectiveness and energy efficiency.
- Efficient Performance: Ensures efficient combustion air flow, crucial for heater effectiveness.
- Energy Efficiency: Helps maintain the energy efficiency of the heater, reducing operational costs.
- Single Volt Blower Adapter: Includes an adapter to ensure compatibility with various heater models.
- Ease of Installation: Designed for straightforward installation, simplifying maintenance and replacement tasks.
- Durability: Built with high-quality materials for long-lasting reliability and performance.
- Essential Maintenance Kit: Provides all necessary components for maintaining optimal heater operation.
The Pentair Natural Gas Heater Combustion Air Blower Kit | 77707-0253 is compatible with the following heater models:
- Pentair MasterTemp Heaters
- Pentair Sta-Rite Max-E-Therm Heaters
This kit is suitable for both the 400NA models of these heaters and includes a single volt blower adapter to ensure a seamless fit and function across these specific models.

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