Amtrol ST-1 Tankless Expansion Tank
$40.00
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The Therm-X-Trol ST-1 absorbs thermal expansion and pressure surge in tankless and point-of-use water heaters to protect the heat exchanger. Simple to install, the ST-1 features patented air cell technology and requires no precharge adjustment or maintenance. With a 304 stainless steel waterway and a 7-year limited warranty, the ST-1 delivers big protection in a compact size.
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