The Pentair® MasterTemp® 125 Heater provides energy-savings and advanced operating features that were only available from larger heaters. With its revolutionary pre-mixed gas combustion technoloy, the MasterTemp® 125 offers 82% of thermal efficiency, the highest in its class. The advanced LCD display/controller provides more information and better control.

• Affordable high performance heater with premium features.
• 82% energy efficiency is highest in class.
• 1-½”. Plumbing connection - ideal for smaller bodies of water, including aboveground pools, spas and inground pools up to 15,000 gallons.
• Pre-mixed combustion technology for ultra-fast heat up.
• Easy-to-use digital display/controller.
• Ceritified for low NOx emissions.
• Available in natural or propane gas.
• Lightweight: 80 lbs - easy to handle and ship.
• Corrosion and UV-resistant enclosure.
• ¾” in. gas line up to 50 ft. from source.
• Certified for outdoor and indoor installations.