Basics of Water Heater Expansion Tanks

The water heater expansion tank prevents fluctuations in water pressure by serving as a receptacle for excess water volume created when heating water.

Does a Tankless Water Heater Need an Expansion Tank? Find Out Now!

Is It Code to Have an Expansion Tank on a Water Heater?

Water Worker Amtrol 2 gal Water Heater Expansion Tank - Ace Hardware

Water heater expansion tank : r/Plumbing

Water Heater Expansion Tanks - Ace Hi

Pressure Vessels

Eastman #60023 Water Heater Expansion Tank 4.5 Gallons

How To Install An Expansion Tank For Your Hot Water Heater

TT FLEX Potable Thermal Expansion Tank for Water Heater - 2.1 Gallon, 3/4 in MNPT Connection : Tools & Home Improvement