• Amtrol
  • ST-5
  • Amtrol THERM-X-TROL Expansion Tanks

Product Description
Amtrol ST-5 THERM-X-TROL Expansion Tank, 2 Gallon (140N43)What Is Thermal Expansion?With modern plumbing codes mandating backflow prevention, thermal expansion can cause pressure buildup in domestic water systems. When demand is put upon a potable water system, hot water is drawn from the water heater. Cold water from the supply line enters the water heater to replenish it. The colder water is heated to replace the hot water used. With the installation of a backflow… More >>

Amtrol ST-5 THERM-X-TROL Expansion Tank, 2 Gallon

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On Demand Hot Water Heaters

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