Affordability, Energy Efficiency & Optimal Performance!

This remarkably affordable, high-efficiency and high-technology gas or propane heater is specifically designed for hot tubs, spas and pools up to 15,000 gallons.

The Pentair MasterTemp 125 Low NOx Spa Heater saves energy, conserves water, eliminates or significantly reduces noise and contributes to a more environmentally friendly filtration system. It also gives you the same energy savings and advanced operating features as much larger and more expensive heaters.

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