Where to Buy

Ashburn, VA

Expansion Tanks
Back To Tanks And Accessories Water Heaters


  • Interior epoxy coating is permanently bonded to the tank shell for ultimate protection on the water side of the water heater expansion tank.
  • Durable butyl diaphragm ensures long life.
  • Positive lock retention system controls compression in the diaphragm connection, eliminating air loss or water leaks in hot water expansion tank.
  • Corrosion-resistant metal air valve 5-year limited warranty on potable expansion tanks 1-year limited warranty on hydronic expansion tanks.
  • Sizing Calculator

Tech Specs


PSI Working Pressure: 100 - 150


Height (Inches): 12 1/2 - 21 5/8
Diameter (Inches): 8 3/8 - 15 3/8
Approximate Shipping Weight (lbs.): 5 - 22

Hi-Res Images

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Ed Begley, Jr.
The talented Hollywood
actor gets behind
our line of high
efficiency water
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