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Amtrol ST-12 Thermal Expansion Tank

ASIN B001BNPSFWImage via Amazon

Home Improvement

Amtrol ST-12 Thermal Expansion Tank

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From the listing

Key features

01

Eliminates the waste of energy and water, thus saving money

02

Prevents the relief valve from going off

03

Protects the water heater and plumbing fixtures from premauture failure

04

Eliminates the waste of energy and water, thus saving money

05

Prevents a dangerous pressure build-up in the system

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Amtrol ST-12 Thermal Expansion Tank

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