Pentair MasterTemp Low Gas Heater 400K BTU

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As an eco-friendly and ultra-high performance product, the Pentair MasterTemp presents the best in class energy efficiency, convenience, and reliability.

For such a compact heater, the product heats up extremely fast, so you will not have to wait too long before enjoying some leisure time in your pool or spa. Plus, the super-quiet operation won’t intrude on your relaxing pool experience.

Since the heater offers a rotating digital display with easy-to-read controls, operating the product is simple. The temperature of your pool or spa can be pre-set by pushing a button on the display. The digital display shows the water temperature and service-indicator lights.


  • 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® 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
  • 2-year limited warranty


  • Brand : Pentair
  • SubBrand : MasterTemp®
  • Item : Low NOx Pool and Spa Heater
  • Type : High Performance
  • Gas Type : Natural Gas
  • Control Type : Digital
  • BTUH Input : 400000
  • Cabinet Width : 23.02 Inch
  • Cabinet Depth : 32.61 Inch
  • Cabinet Height : 28.15 Inch
  • Gas Connection : 3/4 Inch
  • Water Connection : 2 Inch
  • Voltage Rating : 120/240 VAC
  • Frequency Rating : 60 Hz
  • Phase : 1-Phase
  • Flow Rate : 120 gpm


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