Your cart is empty.
Your cart is empty.The Eastman 2-Gallon Thermal Expansion Tank provides a secure connection to water heaters that prevents build-ups of pressure. This water heater expansion tank stops hot water from backflowing into the cold water line and it also prevents hot water from escaping through the pressure relief valve and onto the floor. The thermal expansion tank has a high-quality butyl rubber diaphragm and 304 stainless steel fittings for long-lasting performance.
Mike
2025-09-02 14:07:45
Still working great six months later
Cecil Chamberlin
2025-08-15 17:19:26
So far it's working great and well worth it.
Customer
2025-08-06 17:02:07
Easy to install. Good quality
Greg W
2025-08-05 16:08:37
Works fine.
DJW
2025-08-03 13:14:54
Well made and exactly as described.
Pat Kelly
2025-06-21 11:00:14
Perfect fit and works as intended. Check your water pressure in your house and pressurize the tank to that pressure and you’re good to go.
StormCrow
2025-05-07 12:45:48
I should note that the first one sent was damaged (dented) in shipping. Not damaged in shipping to me, but apparently these are shipped at some point without the protective outer shipping box. The regular product box inside the Amazon box was all ripped and tank dented. I then saw the damaged box had a shipping label addressed to the warehouse. It should not have then been packed and sent to a customer.Anyway, I won't reduce the product rating because of something like that. The replacement is working fine so far. I tested pressure and added a little more to 50 PSI with basic bike tire foot pump.Install was easy, because I was able to simply screw it into an unused backyard spigot/bib location in a secluded and hidden location on the back of the house. (These only need to be placed/connected to the house plumbing, after the reducer.)Before install, my 50 PSI house pressure was going up to 130 PSI when the water was being heated and until water was turned on after to relieve it. (The water heater would make knocking sounds when this pressure was relieved.)Now, with this tank installed it only gets to 52 PSI through the whole heating phase.If anyone gets an abnormal gush of water sometimes when they turn on the water in the house, they likely have this thermal expansion and need a tank like this.
Don M.
2025-05-05 10:12:03
$12 cheaper than locally with free shipping. Replacement for bad 10 yr old Watts expansion tank. Eastmans tank was precharged at 44 psi, charged to house static pressure of 68 psi. Left tank overnight to check pressure again, good to go. Teflon taped this new tank 3 times, but had a small leak from brass fitting on pipe. Went back out and came back with "Oatey Fastape" and "Rectorseal Tru-Blu Pipe Thread Sealant". The Oatey Fastape is grey in color and feels a bit thicker than regular teflon tape. Cleaned brass fitting threads on pipe with wire pipe brush. Coated the Oatey Fastape threads on tank with Rectorseal Tru-Blu Pipe Thread Sealant, tightened in... no leaks. Believe with regular cheap teflon tape, you need maybe 20 wraps of it, completely covering all threads. I only made maybe 6-8 wraps with regular teflon.
Mathew Van Moorsel
2025-02-20 20:58:43
I installed this in my camper as an pressure tank for my 12 volt pump. Works great, pump cycles nice now, even pressure distribution
FF Tom
2025-02-11 12:32:11
Works as expected. Easy to install. I shopped around at a number of hardware stores and this was the best price for what I was looking for.
Patrick
2025-01-30 11:10:03
It does it job as expected. Would be great if it could come with a cheap bracket to fix it on the wall, but that does not reduce at all the overall rating of the product. Let's hope it stays good for a long time so I can just remember it after years. Good product.
Jon
2025-01-09 16:26:34
Works perfectly to help maintain pressure on my hot water line in my house. I am using it to help maintain pressure inline after my on demand water heater and it has helped to maintain pressure drops from the well pump delay. It connects using a standard 3/4" NPT fitting. Would recommend and will increase rating after a year of use. Currently can recommend based on build quality and great price.
dosgringos
2024-11-17 18:34:42
No more hot water expansion in the cold water pipe first thing in the morning. Also got rid of water hammer I had on a particular faucet. Easy to install, just remember to properly set the pressure to match.UPDATE 2019/03/25: Six months later, I noticed small paint bubble on underside of tank. Touching it squeezed out a few drops of rusty water. Spot feels soft. Have contacted manufacturer EZ-Flo and am awaiting an answer for a warranty request. Tank is supposedly guaranteed six years. Will update here once I get an answer.
Recommended Products
