Pressure Battery (Polyethylene Expansion Tank) -- up to 6 tons

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Pressure Battery - The completely sealed tank never needs maintenance, and may be installed in the mechanical room, or even buried outside with the ground loop.

  • The industry's first polyethylene fusion expansion tank maintains system pressure via a custom-molded internal rubber bladder.
  • Designed for up to 6 tons (approximately 3/4 gallon capacity).
  • This product solves the problem of pressure fluctuations in the ground loop system, and call-backs to re-pressurize the loop.