Replace your worn combustion blower and bring your MasterTemp 300 heater back to factory performance with this genuine OEM Pentair Air Combustion Blower (460757). Precision-matched to the MasterTemp 300's combustion chamber geometry, this blower supplies the exact airflow volume needed for clean ignition and maximum heat transfer. Its heavy-duty motor and housing are built to withstand continuous operation in demanding outdoor environments, while the plug-and-play design lets you complete the swap with basic hand tools.

When installing the heater in an enclosed space, the room must provide sufficient fresh air for safe combustion and ventilation. Two permanently open air intakes are required: one located within 12 inches (30 cm) of the ceiling and another within 12 inches (30 cm) of the floor. Each opening must connect directly to outdoor air, either through a wall penetration or dedicated duct run, in compliance with the latest edition of ANSI Z223.1, the National Fuel Gas Code, CSA B149.1, Natural Gas and Propane Installation Codes as applicable, and all relevant local regulations.

Key Benefits

• Precision-Matched Design: Engineered to deliver the specific airflow profile required by MasterTemp 300 heaters for clean, complete combustion.
• Rapid Heat-Up Capability: Proper air delivery ensures the burner reaches full output quickly, getting your pool to temperature in less time.
• Heavy-Duty Construction: Motor and housing materials are selected for resistance to heat, moisture, and vibration, delivering reliable service over thousands of operating hours.
• Plug-and-Play Replacement: Mounting points and electrical connections match the original unit exactly, so installation requires no modifications or adapters.
• Protects Your Investment: Correct airflow prevents incomplete combustion, reducing carbon buildup on the heat exchanger and extending the overall life of your heater.

What's Included

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

Compatibility

• Pentair MasterTemp 300K BTU Pool and Spa Gas Heaters

Specifications

• Brand: Pentair
• Part Number: 460757

SEO Tags

pentair pentair air combustion blower for mastertemp 300 natural gas heaters
460757
pentair combustion blower mastertemp natural