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The Amtrol 118-27 SX-30V Extrol is a hydronic expansion tank designed for residential and light commercial heating systems. The tank has a capacity of fourteen gallons and is built to control pressure build-up in closed loop hydronic systems. It features a urethane topcoat and a sturdy steel construction.
This tank improves comfort and reduces energy costs by accepting expanded fluid as system temperature rises and returning it when it cools.
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