Keep your propane pool heater running at peak output with the genuine OEM Pentair Combustion Air Blower (77707-0256) for MasterTemp 400 units. This blower is the heart of the combustion air supply system, drawing in fresh air and directing it into the burner chamber at the precise rate needed for complete fuel burn. The result is faster pool warm-up, lower fuel consumption, and reduced emissions. Shipped with all required mounting hardware, it installs as a direct drop-in replacement to get your heater back online without delay.

Key Benefits

• Core Combustion Component: Supplies the exact volume and velocity of air your MasterTemp 400 propane heater demands for clean, efficient fuel combustion.
• Precision Air Delivery: Maintains a calibrated air-to-fuel ratio that maximizes heat output while minimizing wasted propane and harmful byproducts.
• Faster Pool Warm-Up: Proper combustion translates directly into faster heat transfer, so your pool reaches the set temperature sooner.
• Straightforward Swap: Bolt pattern, wiring harness, and hose connections mirror the original part, making replacement a quick job with common tools.
• Long-Term Reliability: Premium motor bearings and corrosion-resistant housing materials deliver consistent airflow season after season, protecting both the blower and your heat exchanger.

What's Included

• Air Blower
• Air Orifice
• Screws
• Clear tube hoses
• Nuts
• Other parts included show in pictures above

Compatibility

• Pentair MasterTemp 400k BTU Propane Heaters
• Pentair Sta-Rite Max-E-Therm 400k BTU Propane Heaters

Specifications

• Brand: Pentair
• Part Number: 77707-0256

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