Bring your MasterTemp 250 heater back to full heating power with the Pentair Tube Sheet Coil Assembly 474059. This factory-original assembly serves as the core heat exchange component, transferring thermal energy to pool or spa water with maximum efficiency. Every piece in this kit is built from heavy-duty materials selected for their ability to handle sustained high temperatures and chemical contact. The straightforward design allows for direct installation without custom fabrication, getting your heater operational again with minimal downtime. A properly functioning tube sheet coil is essential to maintaining your desired water temperature and overall heater output.

Key Benefits

• Dedicated MasterTemp 250 Fitment: Manufactured as a direct-fit replacement for MasterTemp 250 heaters, eliminating guesswork and ensuring correct assembly alignment.
• High-Efficiency Heat Transfer: The coil assembly is the heart of your heater's thermal exchange system, delivering effective energy transfer to reach and hold your target water temperature.
• Heavy-Duty Material Selection: Constructed from materials chosen for their resilience against sustained heat, corrosion, and the chemical demands of pool water heating.
• Straightforward Installation: Designed for direct drop-in replacement without modifications, reducing labor time and getting your heater back in service quickly.
• Essential Performance Restoration: Replacing a worn coil assembly restores your heater to factory-level efficiency, ensuring smooth and reliable heating for your pool or spa.

What's Included

• Pentair Tube Sheet Coil
• Pentair 77707-0011 Blower Adapter Plate Gasket Kit
• Pentair 77707-0054 Igniter and Gasket Kit
• Pentair 77707-0001 Manifold Bypass Valve
• Pentair 474952 Combustion Chamber Gasket Kit (9 nuts and 9 washers)
• Pentair 474201 RTV Silicone and Combustion Chamber O-Ring Kit
• Pentair 77707-0008 Insulation Kit
• O-Rings

Compatibility

• Pentair MasterTemp Heaters Models: 250NA, 250P1
• Pentair Sta-Rite Max-E-Therm Heater Model: 250

Specifications

• Brand: Pentair
• Part Number: 474059

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