Amtrol ST-12 Water Heater Expansion Tank
(Therm-X-Span) Amtrol ST-12 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.
Amtrol ST-12 Advantages:
- 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
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