Residential Water Heater Expansion Tanks

Residential Water Heater Expansion Tanks

A. O. Smith’s residential water heater expansion tanks prevent your home’s water pressure from getting too high and damaging your plumbing from thermal expansion.
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2-Gallon Hydronic Expansion Tank
2-Gallon Hydronic Expansion Tank Model RHET-2 100
  • Hydronic Expansion Tank
  • In-Line
  • 1-Year Limited Warranty
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5-Gallon Hydronic Expansion Tank
5-Gallon Hydronic Expansion Tank Model RHET-5 100
  • Hydronic Expansion Tank
  • In-Line
  • 1-Year Limited Warranty
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