About the Pressurized Expansion Tank 21 Gal
The Watts ETA-80 21-Gallon Pressurized Expansion Tank is engineered to protect your heating system by managing pressure fluctuations caused by thermal expansion. With a 21-gallon capacity, this tank is well-suited for medium to large residential and commercial applications. The tank's robust construction includes a heavy-duty diaphragm that ensures durability and long-term performance. Pre-charged and pressurized, the ETA-80 efficiently maintains system pressure, preventing potential damage to your water heater and plumbing fixtures. Its user-friendly design simplifies installation, making it essential for maintaining system safety and reliability in potable water heating systems.