Text or Call: 513-721-5286 | 1-888-Ask-Noel

Store Hours: Mon.-Fri. 8am - 5pm

View Shopping cart 1 View Cart
View Shopping cart 1

4.5 Gallon Thermal Expansion Tank for Residential Water Heaters

4.5 Gallon Thermal Expansion Tank for Residential Water Heaters

chat iconWHAT OUR CUSTOMERS SAY…

“Just wanted to thank you for the great service, quality product, and fast shipping, we appreciate all of it. Best, Rod S. ”
-Rod S.
11/11/2023

$80.27

 

4.5 Gallon Thermal Expansion Tank

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 13935 Category:

4.5 Gallon Thermal Expansion Tank for Residential Water Heaters

 

The EASTMAN® thermal expansion tank prevents hot water from back flowing into the cold water line. This tank also prevents hot water from escaping through the pressure relief valve and onto the floor. The thermal expansion tank prevents constant fluctuations in water pressure that damage the heater.

 

  • 3/4″ MIP connection
  • Factory pre-charged at 40 PSI
  • 304 Stainless steel fittings
  • Butyle rubber diaphragm
  • 6-Year warranty
  • Helps guard against backflow
  • For 30 gal. – 160 gal.

 

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“I was very happy with Noel’s Plumbing. I was searching for a fairly rare part and saw it listed on their website. After placing my order, I was informed that the item was actually on backorder. Noel’s Plumbing was upfront and honest right away, letting me know it might take some time to arrive. Throughout the wait, they consistently kept me updated, which I really appreciated. When the part finally came in, they shipped it out immediately. It arrived exactly as described and was precisely what I needed. Excellent communication, honesty, and follow-through. Thank you, Noel’s Plumbing! ”
-Dave F.
04/04/2026