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Amtrol Extrol Expansion Tank Buy Page
For closed loop radiant heating systems
Amtrol Extrol Expansion Tanks for hydronic water heating, open and closed loop Butyl diaphragm for superior air retention - 9 times better than rubber.
Provides separation of system water from air cushion.
Controls system pressure.
No routine maintenance necessary.
  Expansion Tanks for Closed Loop Heating Systems
Model Your
Price 		Change quantity in your Shopping Cart. You can always remove items later.
EXTROL model ET15 Hydronic Heating Expansion Tank
2 gallon - 1/2"  M P T (Male Pipe Thread) 		$34.95
EXTROL model ET30 Hydronic Heating Expansion Tank
4.4 gallon - 1/2"  M P T (Male Pipe Thread) 		$34.95
EXTROL model ET60 Hydronic Heating Expansion Tank
6.5 gallon - 1/2"  M P T (Male Pipe Thread) 		$89.95
See our Full Line of Cash Acme Expansion Tanks
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