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Purenex ROWT-3-2 Reverse Osmosis RO Storage Tank, White

3.3 out of 5 stars 16 customer reviews

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  • Pressure tested to 300 psi
  • Proven diaphragm design-Built to last
  • Durable steel shell
  • Can be installed horizontally
  • Comes with tank stand

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Product Description

Product Description

Reverse Osmosis Metal Storage Tank. 4-Galllon tank - SS connector 1/4-Inch NPTM, 3.2-Galllon holding capacity. Size: 11-Inch Diameter by 14-Inch Height Pre-charged at 5-7 psi.

From the Manufacturer

Reverse Osmosis Metal Storage Tank. 4-Galllon tank - SS connector 1/4-Inch NPTM, 3.2-Galllon holding capacity. Size: 11-Inch Diameter by 14-Inch Height Pre-charged at 5-7 psi.

Product Information

Technical Details

Part Number ES-8N9M-6EIV
Item Weight 7.4 pounds
Product Dimensions 15 x 6 x 6 inches
Item model number ROWT-3-2
Size 6" x 6" x 15"
Color White
Item Package Quantity 1
Batteries Required? No

Additional Information

ASIN B000MMYSMW
Customer Reviews
3.3 out of 5 stars 16 customer reviews

3.3 out of 5 stars
Best Sellers Rank #434,724 in Home Improvements (See top 100)
#1,608 in Home Improvement > Kitchen & Bath Fixtures > Water Filtration & Softeners > Replacement Filters > Replacement Under-Sink Filters
Shipping Weight 7.4 pounds
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available January 12, 2007

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
The membrane ruptured in my previous tank, so I was looking forward to receiving a new one.

Testing if you need a new tank is simple. Remove the tank from under your sink (or wherever you keep yours). Take it to the bathtub or backyard and open the valve to empty out all the water. Then use a low pressure gauge to test the air pressure when empty. If during this process any air comes out of the water valve or water comes out of the air valve, you need a new tank. If you don't have any leaks, then just adjust the pressure to be 5-7psi when empty and put back under the sink. You don't need a new tank.

In my case I was leaking water out the air valve so I decided to go with a different brand than my previous tank. This one is a little bit wider and shorter than the previous tank I had. The included black plastic stand was terrible. I couldn't even get it to sit flat on it's own. I just used my old stand. I was really pleased that I didn't have to do any adjustments for it to work. The air pressure was perfect to get full use of the tank. I easily get more than three gallons out at a time. I'm at about 2000 ft above sea level. I just screwed it in and it worked perfectly from day one. I've had it a couple of months and have not had any issues. I will update if it gives me any trouble.
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Verified Purchase
I bought this for my RO filter and wife started to complaint about the flavor. I thought it was the tubes and replace everything. but after testing and running the filter without the tank, we realized it was the tank. It made the water taste like a strong chemical after taste. Worse part about it , I couldn't return it since it was past 30 days. oh well. Im actually looking for an alternative since I never replaced it. And decided to put a warning for people. GL.
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Verified Purchase
I bought this tank to replace a GE tank on a 10 year old R.O. system. This tank is a bit larger than the original but there are no additional modifications or parts needed to exchange the tanks. Just loosen the fitting on the top of the old tank and screw it on to the new tank. I wish there were some mention of where this tank is manufactured. There is no mention of it on the box or the tank itself. It works well.
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Verified Purchase
I purchased this tank to replace one that came with a Culligan system. It's smaller than the old one, but the amount of water we've been getting out of the old tank was barely enough to fill a glass of water, so this is still a major improvement.

Hooking it up was simply, attach the valve, inserted the tube, and turned on the water.
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Verified Purchase
The tank seems to be working OK. It had a small dent that probably occurred during manufacturing not shipping. Since it is under sink, inside the cabinet it is not an issue.

I gave it 3 stars because it came without any documentation.
There is no certificate if it has been tested for pressure, or clean enough inside for drinking water. The pressure valve, covered with a cap, says that only professionals should touch it.
I am not a tank professional but would like to know what the set pressure is, just in case...
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Verified Purchase
I am very satisfied with this product. The tank was an exact match replacement tank. It even came with a floor stand to hold the tank. I am happy that I can order my next tank when this one wears out.

I had a great buying experience through Amazon and will recommend that my friends utilize this service as well. The shipping turnaround was quick. I like not having to go out and shop for products.
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Verified Purchase
Replacement for RO tank that failed after four years of daily use. Works as expected and was easy to install. Purchase & shipping thru Amazon was very good.
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Verified Purchase
Purchased this as a replacement for a 5 year old R.O. Tank. We were lucky to ever get 2 quarts of filtered water with our old, smaller filter. After I got home a day after installing the tank, I filled a Gallon pitcher with water and it showed no signs of slowing, so I am completely happy since this is way more water capacity than we have ever had.
Hooking up the tank was as easy as unscrewing the old filter and screwing the filtered water line into the new tank. I did need to use Teflon tape since my first attempt has a slight water leak. I wish I would have purchased this years ago!
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