Master Temp Low Nox Heater - By Pentair

Pentair 400K Natural Gas Iid Cupro-Nickel Master Temp Heater - Free Shipping

$2,439.99 Reg. Price $4,099.99   You Save $1,660.00
Ultra-high performance in a compact, quiet and eco-friendly design.



MasterTemp heaters offer all the efficiency, convenience and reliability features you want in a pool heater, plus a lot more. As easy to use as your home heating system, plus, user-friendly indicator lights and troubleshoot icons make system operation and monitoring a snap. The compact design and super quiet operation won't intrude on your poolside leisure time. Heavy-duty (HD) unit with cupro-nickel exchanger stands up to the harshest of applications, like low pH, high flow or heavy use.


  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency*
  • Manual gas shut-off when service is required
  • Eco-friendly MasterTemp Heater is certified for low NOx emission and outperforms industry standards
  • Rotating digital display allows for easy viewing
  • Tough, rustproof exterior handles the heat and weathers the elements
  • Certified for outdoor and indoor installations
  • For Air Intake Kit order part number 461031
Note: The MasterTemp Heater is certified for Low NOx emissions.
* Heavy-duty (HD) Cupro-Nickel Heat Exchanger 82% Efficient.
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