Rheem ST120 115 Gallon Water Storage Tank Commercial with 2" NPT Connections

- Item #: BCI2143239

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Commercial Storage Tanks Collection Commercial Water Storage Tank with 115 Gallon Tank and 2" NPT Connections

Does your business require large quantities of hot water in short periods of time? Rheem's commercial storage tanks are designed for just such an application. These vertical tanks can be installed individually, or in parallel manifold, and can provide 80% draw capability without an appreciable temperature decrease in single temperature applications. The tank is designed for long life, using a proprietary steel formulation with two coats of high temperature porcelain enamel to maximize corrosion resistance. The two heavy duty magnesium anode rods that are installed provide for longer tank life. Unlike other storage tanks, the ST120's space saving design can pass through a 30" opening. Two inches of polyurethane foam insulation provides superior insulating qualities, which helps you by reducing operating costs. Rheem's patented process of injecting foam into the insulating cavity adds additional durability and toughness to the baked enamel steel outer jacket. Circulating line connections and hot outlet are 2" NPT.


  • Circulating Line Connection: 2" NPT
  • Hot Outlet Connection: 2" NPT
  • Warranty: 5 Year Tank
  • T&P Valve must be ordered separately based on water heater BTU input

Rheem has been manufacturing water heaters since the 1930's, with coast to coast distribution by 1936. Their product offerings cover commercial and residential heating, cooling, solar water heating systems, conventional storage-style water heaters, tankless water heaters, replacement parts and accessories. Rheem's manufacturing facilities are ISO 9001 certified, with four facilities in the United States. Choose an industry leader that is respected for reliability. Choose Rheem.

Additional Rheem Links

Our SKU: Rheem ST120

This product is listed under the following manufacturer number(s):

  • Rheem ST120

*Denotes a finish or option that has been discontinued

Rheem ST120 Product Specifications

Capacity (Gallons) 115
Diameter 28.25
Series Commercial Storage Tanks
Shipping Weight 300
Warranty 5 Year Limited Tank
Water Connection 2" NPT

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

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