Amtrol 141N43 - ST-12 Therm-X-Trol Thermal Expansion Tank, 4.4 Gallons - 141N43

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Amtrol 141N43 - ST-12 Therm-X-Trol Thermal Expansion Tank, 4.4 Gallons - 141N43.

Amtrol ST-12 (Therm-X-Trol) is a water heater expansion tank, designed for use in domestic hot water heating systems to eliminate the potential hazards of water expansion. Water heater expansion tank is commonly installed in a domestic hot water system that contains a backflow preventer, a check valve or a pressure reducing valve.

• Eliminates the waste of energy and water, thus saving money.
• Protects the water heater and plumbing fixtures from premature failure.
• Reduces potential safety hazards associated with thermal expansion.
• Prevents a dangerous pressure build-up in the system.
• Prevents the relief valve from going off.
• Therm-X-Trol brand is the #1 choice of Professional Installers.
• SKU: ST-12
• Model: 141N43

Product Specs:

• Specification Sheet
• Installation Instructions
• Manufacturer Page