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AMTROL ST-5 Thermal Expansion Tank Features
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Accepts expanded water caused by thermal expansion
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Returns water to the system when hot water is used
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Prevents the relief valve from going off
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Inline thermal expansion tank
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Accepts expanded water caused by thermal expansion
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Returns water to the system when hot water is used
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Prevents dripping faucets, intermittent toilet fill and pressure relief valve discharge
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Protects water heater, appliances and fixtures
About AMTROL ST-5 Thermal Expansion Tank
Product Description AMTROL ST-5 Thermal Expansion Tank From the Manufacturer Amtrol invented the thermal expansion tank to control pressure build-up in closed, hot water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard. All Therm-X-Trol expansion tank
