Model # DET-5

Internet #100677607

Store SKU #594885

null 8.5 in. W x 11.5 in. D x 8.5 in. H Pre-Pressurized Steel Water Expansion Tank
0098268679892

8.5 in. W x 11.5 in. D x 8.5 in. H Pre-Pressurized Steel Water Expansion Tank

  • Protects water heater from thermal expansion
  • Thermal expansion may void water heater warranty
  • Required by code in most areas
$39.97 / each
If you buy 3 or more
$35.97 / each
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Product Overview

  • Protects water heater from thermal expansion
  • Thermal expansion may void water heater warranty
  • Required by code in most areas
You're sure to have hot water when you need it with the Watts Pre-Pressurized Steel Water Expansion Tank. Made from strong, durable steel, this tank can be used with gas, electric or oil heaters. An expansion membrane prevents air and water contact, with a rubber diaphragm that flexes when water heats.
  • Compatible with gas, oil and electric heaters
  • Steel construction with a blue outer finish
  • Tank fitted with expansion membrane to ensure long system life by preventing air and water contact
  • Rubber diaphragm flexes when water heats
  • Maximum 150 psi
  • Maximum temperature is 200 Degree F
  • Note: Product may vary by store

Product Overview

You're sure to have hot water when you need it with the Watts Pre-Pressurized Steel Water Expansion Tank. Made from strong, durable steel, this tank can be used with gas, electric or oil heaters. An expansion membrane prevents air and water contact, with a rubber diaphragm that flexes when water heats.

California residents: see   Proposition 65 information

  • Compatible with gas, oil and electric heaters
  • Steel construction with a blue outer finish
  • Tank fitted with expansion membrane to ensure long system life by preventing air and water contact
  • Rubber diaphragm flexes when water heats
  • Maximum 150 psi
  • Maximum temperature is 200 Degree F
  • Note: Product may vary by store

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
12
Product Height (in.)
8.9
Product Width (in.)
8.0

Details

Finish Family
Blue
Material
Steel
Product Type
Expansion Tank
Product Weight (lb.)
5.1lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment.

Specifications

Dimensions

Product Depth (in.)
12
Product Height (in.)
8.9
Product Width (in.)
8.0

Details

Finish Family
Blue
Material
Steel
Product Type
Expansion Tank
Product Weight (lb.)
5.1lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment.

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Questions & Answers

How do you pressurize the tank? Is there an adapter that is neede to add pressure to the tank?

Asked by: Anonymous
No. It is a standard Schrader type valve. The kind that is on your car or older style bicycles.
Answered by: Chris
Date published: 2016-12-07

can it be mounted inverted?

Asked by: doug
Mounting orientation does not matter. See picture from manufacturer below.
Answered by: hardwired56
Date published: 2017-03-11

Does it for a 50 gal tank?

Asked by: mike
Yes
Answered by: kman
Date published: 2017-09-23

Banging in the pipes is caused by?

Asked by: How
An expansion tank should do the trick.
Answered by: kman
Date published: 2017-03-13
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Customer Reviews

8.5 in. W x 11.5 in. D x 8.5 in. H Pre-Pressurized Steel Water Expansion Tank is rated 4.4 out of 5 by 60.
Rated 5 out of 5 by from Solves relief valve leaks from hot water expansion. After installing our new hot water heater (from Home Depot). I saw that when the tank heated the water, expansion of the water occurred, causing the relief valve to leak water. I installed a water expansion tank and the problem was solved. This also added a surprised second fix. . .. . the water pipes would knock when the toilets would shut off, this reduced that noise, sometimes eliminating it completely. . . cool. Follow the directions, air the tank prior to installation, to what your water pressure is. . . See the photo of our installation. . .as you scroll over the photo you will notice we were restricted on room - but it worked nicely.
Date published: 2013-02-13
Rated 5 out of 5 by from This product is a necessary item for any water heater replacement. The compact size works well wi... This product is a necessary item for any water heater replacement. The compact size works well with limited spaces as today's new regulations requiring larger more insulated water heaters for any new replacement installation.. Be sure and read the directions to set the pressure at the appropriate level.
Date published: 2017-05-23
Rated 5 out of 5 by from I was easy to install and looks great I was easy to install and looks great
Date published: 2017-08-22
Rated 5 out of 5 by from Install easy... Install easy
Date published: 2017-08-17
Rated 5 out of 5 by from Fixed Hot Water Heater Relief Valve Leak My hot water heater's relief valve was leaking, and I replaced it. Unfortunately, the new one exhibited the same problems. A pressure gauge on the hot water heater determined that my home's water system was closed, and the relief valve was just doing its job. I installed this expansion tank on the cold water line going into the hot water heater. It lowered the pressure and resolved my dripping relief valve problem. Please be aware that you will have to pressurize this tank yourself, before you install it, based upon your water system's pressure. I had do 5-6 wraps of Teflon Tape to prevent it from leaking.
Date published: 2014-01-08
Rated 5 out of 5 by from Installation was a breeze. My old expansion tank sprung a leak. After I turned off the circuit breaker and main water and did some quick online homework, I purchased this tank as a replacement. I also purchased a water pressure tester, which you have to use to install the tank. Installation was very easy, requiring a bicycle air pump, tire pressure gauge to check your inflation, teflon tape, and a large wrench. This is handy info for someone who has to do an emergency repair like I did.
Date published: 2012-09-27
Rated 5 out of 5 by from Great Product This product is great. You MUST check the water pressure in your home with a pressure gauge ..(usually 55 psi ).. you can buy a spicket pressure gauge for about 10 bucks. Then you MUST put that much air in your tank if your water pressure is 55 psi then you need 55 lbs of air in the tank. If you fail to do this and hook it up as you buy it at 20 lbs of air in this tank it will fail pre mauture. You also must turn off water to your water heater once a year and open a faucet till it stops and check this tank pressure with tire pressure gauge once a year (write the water psi on the tank so you know how much air has to be in tank). If installed correctly this tank is great :))
Date published: 2012-02-18
Rated 5 out of 5 by from Solved my hot water heater T & P Valve leak problem My Temp & Pressure valve on my hot water heater would leak after using a lot of hot water, such as after a bath or shower. I replaced the valve and it still leaked. After doing some research on the problem, I determined it to be thermal expansion and purchased this product. After installation it solved my problem, no more leak.
Date published: 2012-04-20
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