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Rheem MTS85345 Marathon Thermal Storage Tank

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Price: $1,437.95
Item Number: 56845
Manufacturer Name: Rheem Manufacturing Company
Manufacturer Part No: MTS85345

Marathon® thermal storage tanks feature a lifetime limited tank warranty and a 6-year limited parts warranty*

Designed for Alternative Energy Applications


  • Designed for Alternative Energy Applications
  • Specifically designed for installation as a thermal storage tank
  • Backup electrical element provides 40 gallons or more of heated water
  • Large water connections for lower pressure drop
Built to Last!
  • Seamless, blow-molded, polybutene tank – impervious to rust and corrosion
  • Titanium sheath elements for superior resistance to lime build-up
  • Multiple layers of filament wound fiberglass give the tank unmatched strength
  • Tough molded polyethylene outer shell resists dents and scratches
Designed for Easy installation
  • Lightweight
  • Water port fittings located at front of storage tank for convenient access
  • Full port, full flow brass drain valve for fast draining
  • Factory installed temperature and pressure relief valve and vacuum relief valve
  • Thermally fused element provides protection against “dry-firing”
  • Bowl shaped bottom allows for complete sediment removal
  • Recessed drain valve is out of the way of brooms and scrubbers
  • 50, 85 and 105 gallon capacities, 2 port and 3 port configurations
  • Specifically designed for installation as a thermal storage tank
  • Large water connections
  • Tank – impervious to rust, corrosion
  • Lifetime Limited Tank Warranty
  • 6-Year Limited Parts Warranty

Specification Sheet
Installation Manual

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