Pentair Max-E-Therm Low Propane Heater 400K BTU

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A sparkling blue pool sure does seem inviting, but its cold water can keep you away. The Max-E-Therm Low Propane Heater 400K BTU can maximize the pool experience by making sure that the water stays comfortable day and night. Since the product uses liquid propane gas to reach 400,000 BTU, the heater will make your pool irresistible on chilly days.

The heater boasts a rustproof Dura-Glas® exterior, so the product can withstand a variety of pool environments and harsh outdoor weather conditions.

Featuring a simple, compact design for easy outdoor and indoor retro-fit installations, the heater can connect to Mod Media filter, Sta-Rite®, System:3®, and many other systems.


  • Lightweight – lightest heater in its class
  • Best in class energy efficiency
  • Compact design – ideal for retro-fit installations
  • Easy to switch – change gas sources with installation of separate orifice
  • Environmentally friendly – all units are low NOx
  • Rustproof housing – sleek, matte black enclosure is made of Dura-Glas® – an exclusive Sta-Rite® material that handles the heat and weathers the elements
  • Lower operating costs – 84% efficiency rating – rated first in its class for highest energy efficiency
  • Custom or retrofit – direct-connects to Sta-Rite® System:3® Mod Media filter or easily fits other systems
  • Certified for outdoor and indoor installations


  • Brand : Pentair
  • SubBrand : Max-E-Therm®
  • Item : Pool and Spa Heater
  • Type : High Performance
  • Gas Type : Liquid Propane
  • Control Type : Digital
  • BTUH Input : 400000
  • Cabinet Width : 25.15 Inch
  • Cabinet Depth : 31.69 Inch
  • Cabinet Height : 30.03 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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