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4.5 Gal. Thermal Expansion Tank

$5545
  • For use in 30 gal. to 160 gal. water heater tanks
  • Prevents dangerous pressure build-ups
  • For installation on residential water heaters
  • See More Details

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Price:
$5545

Product Overview

The Eastman 4.5-Gallon Thermal Expansion Tank provides a secure connection to water heaters that prevents dangerous build-ups of pressure. This water heater expansion tank stops hot water from backflowing into the cold water line and prevents hot water from escaping through the pressure relief valve and onto the floor. Constant fluctuations in water pressure can be dangerous and they can damage the water heater, properly installing a thermal expansion tank can solve all these issues. This product comes with a 6-year limited warranty and is factory pre-charged at 40 psi. Complies with NSF-61 and Lead-Free guidelines. UPC approved.
  • Built with a butyl rubber diaphragm
  • 3/4 in. MIP connection
  • Factory pre-charged at 40 PSI
  • Maximum operating temperature: 210-degrees F
  • Maximum working pressure: 150 psi
  • 4.5 Gal. capacity
  • Dimensions: 15.3 in. L X 11 in. W X 10.9 in. H
  • Click here to check out our buying guide on water heaters
  • California residents

Info & Guides

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4.5 Gal. Thermal Expansion Tank

Specifications

Dimensions

Product Depth (in.)
11
Product Height (in.)
15
Product Width (in.)
11

Details

Compatible Brand/Model
Compatible with most brands
Finish Family
White
Material
Steel
Pack Size
1
Product Weight (lb.)
9
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
Warranty is limited to replacement or credit, not to exceed the purchase price of the item. Labor and installation charges of any kind are not covered. Warranty is against defects in workmanship or material for a period of one year from the date of purchase. The warranty covers only the specific product The improper use or installation of any these items immediately voids the warranty.

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.6
    out of 18 reviews
  • 100% recommend this product
Filter by:
Showing 1-10 of 18 reviews
This expansion seams to be perfect we have an unusual plumming system here and 80psi of water so ...
This expansion seams to be perfect we have an unusual plumming system here and 80psi of water so I looked at the company website to check sizing chart and you guys made it very easy to chose the right one and everything seems perfect now!!!! Thank you Eastman company for you help!!! I would gladly recomend this companies product and services!!!!!
by
Response from Eastman Customer ServiceJun 5, 2020
Thank you for taking the time to review our product. Customer satisfaction is our main goal. We appreciate the feedback and 4-Star rating! EastmanBrand
  • Verified Purchase
  • Recommended Product
Product appears to be exactly as advertised. Both connections were as expected, so I had it charg...
Product appears to be exactly as advertised. Both connections were as expected, so I had it charged and installed within 30 minutes (I had pre-installed all the connections to the hot water heater supply line). Unfortunately, this product just sits there ready to absorb any surge, so one cannot see it doing anything. It sure looks good, and doesn't leak!
by MICHAEL
  • DIY
  • Verified Purchase
  • Recommended Product
Quick delivery at a good price....
Quick delivery at a good price.
by JOHN
  • Verified Purchase
Perfect replacement at good price...
Perfect replacement at good price
by VICTOR
  • Verified Purchase
This was installed by a professional....
This was installed by a professional.
by HomeDepotCustomer
  • Verified Purchase
1 person found this helpful
Excellent all around!!...
Excellent all around!!
by Fred
  • Verified Purchase
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Response from Eastman Customer ServiceJun 12, 2020
Thank you for taking the time to review this product. We appreciate the 5-Star rating! EastmanBrand
  • Verified Purchase
It is a bit larger than I imagined. I had...
It is a bit larger than I imagined. I had to wait longer for it to be delivered than I thought I should have to, but it was during the early days of Civid lockdown.
by Amotmr
Response from Eastman Customer ServiceJun 17, 2020
Thank you for taking the time to review this product. We appreciate your positive feedback! EastmanBrand
  • Verified Purchase
Llego golpiado, esta con una abolladura...
Llego golpiado, esta con una abolladura
by HomeDepotCustomer
Response from Eastman Customer ServiceJun 9, 2020
Lamentamos que nuestro producto no haya cumplidos sus expectativas. La satisfacción de nuestros clientes y la calidad de nuestros productos es nuestra meta primordial. Le pedimos se ponga en contacto con nuestro departamento de Atencion a Clientes al 1-800-486-5256. Gracias EastmanBrand
  • Verified Purchase
Easy to install as I was replacing a defective one(a...
Easy to install as I was replacing a defective one(a different brand). I am interested to see how long this one lasts.
by Winchgroomer
Response from Eastman Customer ServiceApr 8, 2020
Thank you for sharing your experience with this product. We appreciate your positive feedback! EastmanBrand
  • Verified Purchase
Showing 1-10 of 18 reviews