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FREE USPS GROUND ADVANTAGE SHIPPING on items OVER $75.00 (UNDER 1 LB.) based on the weight per item. If you can't find a part you are looking for, call or text us at 970-518-3085!
FREE USPS GROUND ADVANTAGE SHIPPING on items OVER $75.00 (UNDER 1 LB.) based on weight per item. If you can't find a part you are looking for, call or text us at 970-518-3085!

5 Quart Expansion Bottle - PLE-621-800

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Original price $145.79
Original price $145.79 - Original price $145.79
Original price $145.79
Current price $131.21
$131.21 - $131.21
Current price $131.21

The 5 Quart Expansion Tank is a direct replacement part used in Aqua-Hot hydronic heating systems to manage system pressure and provide coolant reserve capacity. This tank allows for the safe expansion and contraction of antifreeze fluid as the system heats and cools.

Important Information
  • Check Fluid Levels Regularly – Works in conjunction with fluid level sensors and should be inspected as part of routine system maintenance. It is best for expansion tank to be topped with antifreeze when the system is up to temperature, avoiding any boil over.
  • Genuine OEM Replacement – Designed for perfect compatibility and optimal performance in Aqua-Hot heating systems.

Compatible Models

Aqua-Hot
AHE-100-00S AHE-100-01S AHE-100-02S AHE-101-000 AHE-200-02S
AHE-920-431 431/11 431/11B 431/12
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