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To see product details, add this item to your cart.
FREE Returns
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Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
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Ships from: Amazon Sold by: Amazon Warehouse
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iSpring T55M 5.5 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems, White
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | iSpring |
Special Feature | NSF certified |
Product Dimensions | 17"L x 12"W x 12"H |
Package Information | Can |
Model Name | T55M 5.5 Gallon Residential |
Lower Temperature Rating | 40 Degrees Fahrenheit |
Upper Temperature Rating | 100 Degrees Fahrenheit |
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About this item
- 5.5 gallon metal pressurized tank
- Made from food grade butyl diaphragm with post-cure procedures provides a tasteless and odorless water chamber
- Stainless steel 1/4" NPT valve thread, Ball Valve Included
- Discharges effectively in both vertical and horizontal position
- Pre-pressurized between 7-10 psi for common use
Frequently bought together
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Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 17 x 12 x 12 inches; 9.2 Pounds
- Item model number : T55M
- Date First Available : March 1, 2016
- Manufacturer : iSpring Water Systems
- ASIN : B01CES39N0
- Country of Origin : China
- Best Sellers Rank: #6,000 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
- Customer Reviews:
Product Description
Metal tank 5.5 gal with 4.0 gal holding capacity, tested by independent third-party to meet NSF/ANSI Standard. Stainless steel connector 1/4 inch NPT, food grade materials. Special designed for RO applications. Discharges efficiently in a vertical or horizontal position. Tank stand included. Compatible with most reverse osmosis systems (including name brands) in the market.
From the brand
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How did we get our start?
Established in 2007 in Atlanta, Georgia, we have been dedicated to providing easily accessible clean water solutions to ensure that every household has access to safe water through our products.
What makes our products unique?
We prioritize our customers by offering innovative products, easy DIY installation, and ongoing research and development of new filtration systems that set us apart from the competition.
Why do we love what we do?
We take pride in committing to excellence in designing and manufacturing quality water filtration products.
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From the manufacturer
iSpring Pressurized Water Tanks
At iSpring, we look beyond technology to make high quality drinking water accessible for all households. We provide our customers with professional water solutions to any water concerns they may have.
- T32M (3.2 gal)
- T55M (5.5 gal)
- T11M (11 gal)
- T20M (20 gal)
- T40M (40 gal)
How does it work?
iSpring pre-pressurized tanks are great for use in whole house water storage with your reverse osmosis system or other water filtration system. The water filtration process is on the slower side, so a pressurized storage tank is typically required to supply water from the system on demand. Your water filtration system will fill the tank to capacity, and when you open your water dispenser, the water is sent out by the tank's pressurized air bladder.
- All tanks have a maximum working pressure of 100 psi.
- iSpring Pre-pressurized tanks are tested by independent third party against NSF/ANSI standard (61 for Drinking Water System Components) for material safety and structural integrity requirements, 2018
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iSpring tanks have a special surface treatment on the metal body that prevents rust and dents. |
All of our metal tanks pass pressure tests before we ship them out to customers. |
Unlike traditional plastic, stainless steel that does not break or strip easily is used in our tank valve thread and pressure check valve. |
Inside all iSpring tanks, a durable butyl diaphragm with post-cure procedures provides a tasteless and odorless water chamber. |
T32M | T55M | T11M | T20M | T40M | |
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Customer Reviews |
4.7 out of 5 stars
4,932
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4.7 out of 5 stars
4,932
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4.7 out of 5 stars
4,932
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4.7 out of 5 stars
4,932
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4.7 out of 5 stars
4,932
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Pressurized Tank | ✓ | ✓ | ✓ | ✓ | ✓ |
Capacity | Up to 3.2 Gal | Up to 5.5 Gal | Up to 11 Gal | Up to 20 Gal | Up to 40 Gal |
Size | 11x11x14 in | 12x12x16 in | 15x15x22 in | 16x16x30 in | 17x17x41 in |
Tank Valve Position | Top | Top | Bottom | Bottom | Bottom |
What's in the box
Product guides and documents
Videos
Videos for this product
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Why Choose iSpring 5.5 Gallon Reverse Osmosis Water Tank
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, performance, capacity and value of the water purification unit. For example, they mention it's well made, works well and holds lots of water. That said, some are happy with replacement, and ease of installation. That being said, opinions are mixed on pressure and fit.
AI-generated from the text of customer reviews
Customers are satisfied with the performance of the water purification unit. They mention that it works well, has no problems, and the tank itself is performing fine. The stand works well and the empty tank is easy to carry and maneuver. It works perfectly with their existing RO system and the Whirlpool system. The pressure tank is a great product that comes with everything needed to install it.
"...tank for your RO system, I highly recommend this tank It's a top-notch product that delivers on quality and increased water capacity...." Read more
"...Quick and easy to install, pumped up to 7lb with bike pump. Works like new again." Read more
"...replace the valve, I was able to install the tank and everything is running GREAT!..." Read more
"...I then connected the tank. It now works superbly. The tank keeps constant pressure so the water flows instantaneously...." Read more
Customers find the installation of the water purification unit to be pretty straight forward. They mention that the hookup was very simple, and the tank comes with everything needed to install it. Customers also mention that it's easy to pump up and that no adjustments are needed to make it work.
"...The easy-to-follow instructions made the process straightforward, and I had it up and running in no time...." Read more
"...Quick and easy to install, pumped up to 7lb with bike pump. Works like new again." Read more
"...Easy to install too! Now I’m back to full pressure and have plenty of water to drink and go hog wild with!! Yeehaw!" Read more
"...Came in good condition and easy to install. the Old tank lasted for about 7 years. Hopefully i will get similar service from this as well." Read more
Customers appreciate the value of the water purification unit. They say it's an excellent value for the money, saves them money, and is an incredibly affordable clean water system. Customers also say it is a good buy and worth the money and time to install.
"Replaced my bad RO tank with this reasonable priced tank. Works great with the Whirlpool System." Read more
"...Now I can literally do it all and not wait. More than worth the money and time to install (25 minutes under the sink in a corner of the cabinets)." Read more
"...upgrade to a household that uses a lot of filtered water; also at a great value (most affordable option in class)...." Read more
"...Great Product, Incredible Customer support, priced right, what more can you ask for...." Read more
Customers like the quality of the water purification unit. They mention it's well-made, reliable, and holds up well. Customers also appreciate the quality packaging, fittings, and paint. They expect it to last for many years and saves wear and tear on the pump.
"...If you're in need of a reliable and high-capacity water storage tank for your RO system, I highly recommend this tank It's a top-notch product that..." Read more
"The price for the size of the unit, and durability is fantastic. I did have some trouble hooking it up from a smaller size tank...." Read more
"...The tank comes with a nice stand and some hardware. I am happy with everything except the hardware...." Read more
"Out of the gate, seemed as if the tank is well made.Tho pre charged found the output pressure underwhelming...." Read more
Customers are satisfied with the capacity of the water purification unit. They mention that it holds lots of water, is reliable, and has a high-capacity water storage tank. Some say that it's easy to install and provides more than 4 gallons when fully charged.
"...If you're in need of a reliable and high-capacity water storage tank for your RO system, I highly recommend this tank It's a top-notch product that..." Read more
"...this tank as a replacement and it’s also I bit bigger which gives me more water to store. Easy to install too!..." Read more
"...We are really enjoying the larger capacity, and we never run out of on-demand RO drinking water!..." Read more
"...This fixed our issue and I appreciate the upgraded size...." Read more
Customers are satisfied with the replacement tank. They mention that it is easy to install and replace their old unit. Some say that it even came with the correct pressure installed. Overall, most are happy with their purchase and recommend it to others.
"The tank was received quickly and in perfect condition. Easy to replace my failed tank along with the included valve, and my RO system is back up..." Read more
"...So easy to connect and a perfect replacement for my prior tank." Read more
"Great replacement, worked perfectly with our existing RO system that previous tank lost pressure and failed." Read more
"...It is a pretty easy replacement, screw on the valve and plug in the tube. (In hindsight, check the tank for pressure)" Read more
Customers are mixed about the pressure of the water purification unit. Some mention that the pressure is fine and comes out of the faucet fine, while others say that the tank pressure was getting low and the flow was terrible.
"...I then connected the tank. It now works superbly. The tank keeps constant pressure so the water flows instantaneously...." Read more
"...Tho pre charged found the output pressure underwhelming...." Read more
"...With the additional capacity I have not lost water pressure, even with keeping two large humidifiers inventoried." Read more
"...a lot RO water, never ran out of water and always plenty of pressure to feed everything...." Read more
Customers are mixed about the fit of the water purification unit. Some mention that it fits and was easy to install, while others say that it didn't fit their tank, was too small for their existing water line, and was not fit for drinking water.
"...Everything was tight, I used Teflon Tape on the threads, and tightened down properly without over or under tightening the piece...." Read more
"...This fit perfectly, quality seems great, and there were no leaks. Here is to never running out of clean water again!!!" Read more
"...that the tank came with a 1/4 inch fitting, which is too small for my existing water line!..." Read more
"...Sure enough, same identical product. Same size, same color, same dimensions, same color label but with the exception the one ordered had a very..." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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The first thing that caught my attention was the quality construction of this tank. It looks and feels robust, giving me confidence in its durability. The 5.5-gallon capacity is a significant improvement over my previous 4-gallon tank, providing more water storage for my household needs.
Installation was a breeze, thanks to the included top valve. The easy-to-follow instructions made the process straightforward, and I had it up and running in no time. The top valve not only adds to the convenience but also ensures efficient functionality.
I appreciate the additional water capacity, especially during peak usage times. With this tank, I no longer have to worry about running out of purified water. The iSpring T55M has exceeded my expectations with its quality and ease of installation.
If you're in need of a reliable and high-capacity water storage tank for your RO system, I highly recommend this tank It's a top-notch product that delivers on quality and increased water capacity. Five stars all the way!
Reviewed in the United States on January 10, 2024
The first thing that caught my attention was the quality construction of this tank. It looks and feels robust, giving me confidence in its durability. The 5.5-gallon capacity is a significant improvement over my previous 4-gallon tank, providing more water storage for my household needs.
Installation was a breeze, thanks to the included top valve. The easy-to-follow instructions made the process straightforward, and I had it up and running in no time. The top valve not only adds to the convenience but also ensures efficient functionality.
I appreciate the additional water capacity, especially during peak usage times. With this tank, I no longer have to worry about running out of purified water. The iSpring T55M has exceeded my expectations with its quality and ease of installation.
If you're in need of a reliable and high-capacity water storage tank for your RO system, I highly recommend this tank It's a top-notch product that delivers on quality and increased water capacity. Five stars all the way!
When I first received the new tank and connected it up I used Teflon tape at both fittings and I got leaks. I tightened the fittings too tight and broke the valve off inside the large tank fitting. I called iSpring and Sean sent me the replacement fittings. Within a few days I had them, added more Teflon tape, carefully tightened the fittings and it worked well with no leaks.
4 Gallon, 1/4" Tank Valve Included
Purchased: 1-10-2024
Received: 1-12-2024
Reviewed: 2-5-2024
I replaced a faulty 2.8 gallon tank with this larger 4 gallon "iSpring T32M Pressurized Water Storage Tank with Ball Valve...".
We drink RO water for health reasons. Since we were without RO water due to the faulty existing tank, I promptly installed this new tank. Unfortunately, I did not realize that the tank came with a 1/4 inch fitting, which is too small for my existing water line! Since I was installing a larger tank, I didn't consider the new fitting being smaller than the fitting on my smaller tank.
The only reason I did not give this product (5) stars is because I had to swap out the included valve with the valve from the old tank. This is because the existing plastic RO water line is larger than the supplied 1/4 inch valve fitting. This is my mistake for not noting it when I purchased it, but then too, since this is a replacement product, the supplier could have easily provided the optional size valve with the tank, making me and all future buyers VERY HAPPY!
Fortunately I had the old valve and it fit the new tank without any problem!
If I didn't have the replacement valve then I would have been out of luck installing the new tank.
Since I was able to quickly replace the valve, I was able to install the tank and everything is running GREAT!
We are really enjoying the larger capacity, and we never run out of on-demand RO drinking water! Now we can fill all of our backup water jugs without running out of pressure and water.
Perhaps the company can include multiple fittings of popular sizes so this doesn't happen to the next buyer!
All the tubes in our RO system came with the RO system and were installed correctly. The mismatch fitting was not anticipated since we assumed our RO system and the new tank to both be standard.
Also, since I was going to connect mine up to my refrigerator ice maker and water dispenser I was very alert to any comments about that type of installation. Interestingly, about 3/4 of the reviews suggested that I would be fine with the iSpring tankless system with the remaining suggesting that it didn’t work well.
I called hiring iSpring customer service. As reviewed, the response was very fast. They suggested that I would be happier with their T32M tank connected the tankless system. I ordered both I installed the tankless system and everything worked pretty good. The refrigerator water dispenser worked with a little pulsating action on the water stream. I then connected the tank. It now works superbly. The tank keeps constant pressure so the water flows instantaneously. I also installed the RO water faucet. Since you have to activate the filters by running the system for 30 minutes, it would’ve been a real pain to stand in front of the refrigerator water dispenser doing that.
I enthusiastically recommend the system.
Reviewed in the United States on November 23, 2023
Also, since I was going to connect mine up to my refrigerator ice maker and water dispenser I was very alert to any comments about that type of installation. Interestingly, about 3/4 of the reviews suggested that I would be fine with the iSpring tankless system with the remaining suggesting that it didn’t work well.
I called hiring iSpring customer service. As reviewed, the response was very fast. They suggested that I would be happier with their T32M tank connected the tankless system. I ordered both I installed the tankless system and everything worked pretty good. The refrigerator water dispenser worked with a little pulsating action on the water stream. I then connected the tank. It now works superbly. The tank keeps constant pressure so the water flows instantaneously. I also installed the RO water faucet. Since you have to activate the filters by running the system for 30 minutes, it would’ve been a real pain to stand in front of the refrigerator water dispenser doing that.
I enthusiastically recommend the system.
Top reviews from other countries
Reviewed in Canada on December 17, 2023