Pentair MasterTemp HD Cupro Nickel Tube Sheet Coil Kit | 77707-0244
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Pentair MasterTemp® HD heaters use high-performance heat exchangers designed for rapid heat transfer and durability. Cupro nickel upgrades significantly improve resistance to corrosion, especially in saltwater or chemically aggressive pools. Warranty: 1-Year Limited (manufacturer standard for heater components).
Q: What heaters is this compatible with? A: Designed for 400K BTU MasterTemp and Max-E-Therm HD series heaters (pre-2009 models).
Q: What does this kit include? A: Includes tube sheet coil, O-rings, insulation, ignitor, and mounting hardware for full replacement.
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Pentair MasterTemp HD Cupro Nickel Tube Sheet Coil Kit | 77707-0244
Description
Description
Pentair MasterTemp HD Cupro Nickel Tube Sheet Coil Kit | 77707-0244
Heavy-duty cupro nickel heat exchanger kit for 400K MasterTemp HD heaters. Restores heating efficiency and resists corrosion.
Features
- Cupro nickel construction for superior corrosion resistance.
- Restores heat transfer and heater efficiency.
- OEM replacement for MasterTemp and Max-E-Therm 400HD heaters.
- Includes coil, O-rings, insulation, and hardware.
- Ideal for saltwater and high-chemical environments.
Description
The Pentair 77707-0244 Tube Sheet Coil Assembly Kit is a complete heat exchanger replacement for 400K BTU MasterTemp and Max-E-Therm HD heaters. Built from durable cupro nickel, it provides enhanced resistance to corrosion and long-term reliability.
This assembly replaces the internal heat transfer system, restoring proper heating performance in units experiencing scaling, corrosion, or leaks. It includes essential components for a full rebuild, ensuring proper fit and function.
Designed for heavy-duty applications, this kit is ideal for demanding pool environments where standard copper exchangers may fail prematurely.
Pro Tip
Flush the system before installation and replace all seals during service to maximize lifespan and prevent future leaks.
Installation Tips
Disconnect power, gas, and water before servicing. Drain heater completely. Professional installation is recommended due to internal component complexity.
Specifications
Specifications
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Warranty
Product Warranty
Product Warranty
We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:
- Pentair Warranty
- A&A (Pentair In-Floor) Warranty
- Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
- Paramount Warranty
- BlueSquare Warranty
- Hayward Warranty
- All Other Manufacturer Warranties
Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.
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