ST-12 Thermal Expansion Tank For Water Heaters That Cuts Energy And Water Waste, Prevents Pressure Build Up, Keeps Relief Valve From Tripping, Protects Your Water Heater And Plumbing, Easy Install And Long Lasting

THERM-X-TROL 4.4-Gallon Expansion Tank for Water Heaters
✔️ Single unit 4.4-Gallon THERM-X-TROL expansion tank protects system

The ST-12 THERM-X-TROL expansion tank is a 4.4 gallon device used in closed hot-water systems to absorb thermal expansion and stabilize pressure. It protects the water heater and plumbing by reducing stress and preventing relief valve trips in homes with backflow prevention and pressure regulators.

✅ 4.4 gallon capacity
✅ White finish for easy matching with standard equipment
✅ Protects against relief valve trips by absorbing expansion
✅ Reduces energy waste and water waste through pressure control
✅ Easy install and long lasting

💡 What is a thermal expansion tank used for in home plumbing?

This handy device helps manage pressure caused by heated water in closed hot water systems. - reduces pressure buildup in closed hot water systems
- protects the water heater from premature wear due to thermal expansion
- prevents unnecessary water waste and energy loss by reclaiming expanded water
- works with backflow preventers, check valves, and pressure reducing valves
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