928-045

This 2.1-gallon potable water expansion tank is a critical safety component designed to manage thermal expansion in residential water heating systems. When water is heated, it expands; in a closed-loop plumbing system, this expansion creates excess pressure that can damage pipes, fittings, and the water heater itself. By providing a cushioned reservoir for this extra volume, the expansion tank prevents the pressure relief valve from leaking and extends the lifespan of your appliance. Engineered for use with potable (drinking) water, it features a durable internal diaphragm that keeps the water separate from the air charge, ensuring consistent performance and preventing corrosion. Ideal for both gas and electric water heater installations, this tank is an essential upgrade for maintaining a safe and efficient home plumbing environment.
Type: Potable Water Expansion Tank
Size: 2.1 Gallon
Application: Designed for use with domestic water heaters, boilers, and closed-loop potable water systems to control thermal expansion pressure.
Specifications: 2.1-gallon total volume, compatible with potable water systems, features a high-grade butyl diaphragm to separate air and water chambers, designed to handle standard residential water pressures.