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iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4" Tank Valve Included

4.6 4.6 out of 5 stars 5,985 ratings

$40.22 with 23 percent savings
List Price: $51.99
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4 Gallons
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Purchase options and add-ons

Brand iSpring
Special Feature NSF certified
Product Dimensions 11"L x 11"W x 14"H
Package Information Bottle
Installation Type Under Sink
Item Weight 8 Pounds
Model Name Pressurized Water Storage Tank
UPC 662425023684
Global Trade Identification Number 00662425023684
Manufacturer iSpring Water Systems
Material
Stainless Steel
Capacity
4 Gallons
Included Components
tank
Purification Method
Reverse Osmosis

About this item

  • Metal pressurized tank with up to 3.2 gallon holding capacity
  • Made from food grade butyl diaphragm with post-cure procedures provides a tasteless and odorless water chamber. Tested by independent third-party to meet NSF/ANSI Standard
  • Stainless steel 1/4" NPT valve thread, 1/4-inch tank valve Included
  • Discharges effectively in both vertical and horizontal position
  • Pre-pressurized between 7-10 psi for common use

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From the brand


From the manufacturer

tank
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ispring factory

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 perfect for use in under-sink water storage with your reverse osmosis system. The RO process is on the slower side, so a pressurized storage tank is typically required to supply water from the system on demand. Your RO system will fill the tank to capacity, and when you open your RO 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

strong

iSpring tanks have a special surface treatment on the metal body that prevents rust and dent.

tested

All of our metal tanks pass pressure tests before we ship them out to customers.

material

Unlike traditional plastic, stainless steel that does not break or strip easily is used in our tank valve thread and pressure check valve.

eco

Inside all iSpring tanks, a durable butyl diaphragm with post-cure procedures provides a tasteless and odorless water chamber.

T32M T55M T11M T20M T40M
Customer Reviews
4.6 out of 5 stars
5,985
4.6 out of 5 stars
5,985
4.6 out of 5 stars
5,985
4.6 out of 5 stars
5,985
4.6 out of 5 stars
5,985
Price $40.22 $62.01 $139.99 $172.12 $482.99
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
ispring charity

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4" Tank Valve Included


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Product guides and documents

Product Description

"Features:

Stainless steel 1/4"" NPT valve thread connection to connect to RO systems and other water producing applications. Smooth internal air vent cap prevents diaphragm damages. High-grade butyl diaphragm and post-cure procedures ensure a safe, tasteless and odorless water chamber. Discharges effectively in a vertical or horizontal position. Tested by independent third-party to meet NSF/ANSI Standard. IAMPO approved. CE Mark approved

Specifications & Dimensions:

Height: 14""
Diameter: 11""
Tank size: 3.2 gallons
Shipping weight: 9 LBS

Tank ball valve included."

Top Brand: iSpring

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iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4" Tank Valve Included
iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4" Tank Valve Included
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Price-23% $40.22
List:$51.99
$69.95$38.69$39.99$69.99$59.87
Delivery
Get it as soon as Friday, Dec 27
Get it Dec 30 - Jan 6
Get it as soon as Friday, Dec 27
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Customer Ratings
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Customer reviews

4.6 out of 5 stars
5,985 global ratings

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Customers say

Customers are satisfied with the water purification unit. They find it easy to install and maintain, with clear instructions. Many consider it a good value for the money, with great-tasting water. However, opinions differ on its durability, water pressure, and leakage.

AI-generated from the text of customer reviews

628 customers mention "Works great"599 positive29 negative

Customers are satisfied with the water purification unit. They say it works well and provides clean drinking water. The tank holds plenty of water and is a top-notch product.

"The tank works great! It comes pressurized already and has a head gasket that you can connect the valve with a snap. Super easy to install and setup...." Read more

"...It has worked great for over a year now and I am on my second set of filters...." Read more

"...And the filter system is now working fine, so don't hesitate to buy. I'm leaving my review below in case it takes a while to update the instructions...." Read more

"...The tank is very well made and works flawlessly, but honestly I wasn't happy with the 3/8" shutoff setup..." Read more

461 customers mention "Ease of installation"420 positive41 negative

Customers find the water purifier easy to install and maintain. The instructions are clear, and filter replacements take just 5 minutes. It mounts easily to the side of the cabinet. Customers appreciate the great product and excellent customer support.

"...Super easy to install and setup. Definitely worth the price and quality" Read more

"...Filter installation is a breeze and they are affordable as well...." Read more

"...PROS:1. The system IS actually easy to install when you have familiarized yourself with everything they have sent and how it will work with..." Read more

"...It was super easy to install. The fitting that came with it did not work for my system but I was able to use the old one...." Read more

199 customers mention "Taste"143 positive56 negative

Customers like the taste of the water. They say installation is easy and that the water tastes great.

"...It filtered out all of the chlorine taste that we have coming from our city tap water and made our drinking water so much better...." Read more

"...I assume this filter does it's job. The water tastes good to me though I doubt my ability to judge that...." Read more

"...more gallons the water was crystal clear and the flavor has become progressively better and better and has stabilized.PROS:1...." Read more

"...When I tested the water it was cloudy and tasted a little funny, it got better after I ran the tap for a while. Now it tastes pretty darn good...." Read more

191 customers mention "Value for money"184 positive7 negative

Customers appreciate the product's value for money. They find it affordable and a good buy.

"...Super easy to install and setup. Definitely worth the price and quality" Read more

"...Filter installation is a breeze and they are affordable as well...." Read more

"I'll give this 4 stars for being what I wanted and at the best price and appearing to work..." Read more

"...Well worth the money,Simple design and installGreat tasting waterNOTES:1.There is a review about salt taste...." Read more

235 customers mention "Durability"116 positive119 negative

Customers have different views on the water purification unit's durability. Some find it well-constructed and reliable, with a sturdy plastic stand. Others report issues like faucets breaking, internal membranes breaking, or tank cracking.

"...Do not hesitate to purchase this system. The product is excellent quality and support is top notch." Read more

"...It dies sloooowly over the years, so you get used to less and less output without really realizing it until you get irritated enough to do something..." Read more

"...The tank is very well made and works flawlessly, but honestly I wasn't happy with the 3/8" shutoff setup..." Read more

"...It had developed a crack at the top where it screwed in to the main block...." Read more

156 customers mention "Water pressure"83 positive73 negative

Customers have mixed reviews about the water pressure. Some say it's good at 40-50 psi, and the tank keeps constant pressure so the water flows smoothly. Others report issues like low tank pressure, no air pressure in the tank, or the bladder failing after 5 years of use.

"...That being said. It holds lots of water. Great pressure, and we have an ever flowing stream of water coming in without waiting for it to charge up...." Read more

"...the tank to 8 psi, but after a second or so the pressure dropped back to zero.. I called the vendor directly and reached John at 123filter.com...." Read more

"...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

142 customers mention "Water quality"93 positive49 negative

Customers have different experiences with the water quality. Some find it fresh and clean, with a filtration system that improves drinking water quality. Others report issues with the membrane breaking, causing the tank to flood, and never having any water left for use at the faucet.

"The water is really good. We use it for coffee, tea, drinking and pretty much anything we cook using water. Excellent filters...." Read more

"...because these are some weird sort of dust plugs...." Read more

"...The water is always fresh and limitless. Now we use stainless steel insulated bottles and fill them at the sink...." Read more

"...That’s it. No leaks. No water damage…dry at the bottom of the base..That being said. It holds lots of water...." Read more

129 customers mention "Leakage"39 positive90 negative

Customers have different experiences with leaks in the water purification unit. Some report no leaks, while others mention issues like faucet dripping or bursts of water when using the faucet.

"...All my tubing connections leaked the first time because I didn't use enough force to push them in...." Read more

"...the valve and a couple other different things and the valve continued to leak from the top of the tank...." Read more

"...2. The snap-fit connections work great and do not leak a drop.3. Twist on replacement filters. How could it get any simpler???4...." Read more

"...But it does taste very good and installed easily. Unfortunately it developed a leak between the uf filter and head and seems it blew past the oring...." Read more

Good replacement RO tank!!!
5 out of 5 stars
Good replacement RO tank!!!
This is a very good replacement water tank that pretty much is compatible with most 3-5 stage under sink RO systems such as Watts, Express Water etc. all these RO systems more or less use the same technology and many of these parts are generic and interchangeable. I am currently using this iSpring tank with my Watts 5 stage under sink RO system.If your RO system’s water flow significantly drops from the faucet like after 5 secs or less and if it starts dripping the water even though the RO tank is HEAVY & FULL of water then it’s a sure tell sign that your tank’s rubber diaphragm is busted and you will need a new tank.Always check the pressure of the RO Tank after before installing it as the pressure supposed to be between 7-9 PSI for the RO to function well and many a times the tanks loose pressure sitting in the warehouse. When I checked mine it read 4 PSI and I had to pump air using a bicycle pump to bring it up to 9 PSI. It is important not to exceed 9 PSI at any cost as it may lead to other problems. You can pump the air via the valve located on the lower half of the tank right below the iSpring logo which is covered by a blue cap; unscrewing it will give access to the valve.
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Top reviews from the United States

  • Reviewed in the United States on December 6, 2024
    Size: 4 GallonsVerified Purchase
    The tank works great! It comes pressurized already and has a head gasket that you can connect the valve with a snap. Super easy to install and setup. Definitely worth the price and quality
  • Reviewed in the United States on July 18, 2024
    Size: Ultrafiltration SystemVerified Purchase
    I purchased the CU-A4 system to filter the water going into my refrigerator and it made a huge difference in the taste of the water. It filtered out all of the chlorine taste that we have coming from our city tap water and made our drinking water so much better.

    I have the system installed above the refrigerator in a plastic tub so that the included leak detection shut-off valve will trigger as soon as any leak touches it. It has worked great for over a year now and I am on my second set of filters. Filter installation is a breeze and they are affordable as well.

    I had a couple of issues that Sean from iSpring customer service handled quickly and professionally. His replies were always very prompt and he even sent me free replacement parts to solve my issues. Do not hesitate to purchase this system. The product is excellent quality and support is top notch.
    Customer image
    5.0 out of 5 stars Excellent water filtration system and superb customer service
    Reviewed in the United States on July 18, 2024
    I purchased the CU-A4 system to filter the water going into my refrigerator and it made a huge difference in the taste of the water. It filtered out all of the chlorine taste that we have coming from our city tap water and made our drinking water so much better.

    I have the system installed above the refrigerator in a plastic tub so that the included leak detection shut-off valve will trigger as soon as any leak touches it. It has worked great for over a year now and I am on my second set of filters. Filter installation is a breeze and they are affordable as well.

    I had a couple of issues that Sean from iSpring customer service handled quickly and professionally. His replies were always very prompt and he even sent me free replacement parts to solve my issues. Do not hesitate to purchase this system. The product is excellent quality and support is top notch.
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    5 people found this helpful
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  • Reviewed in the United States on May 16, 2013
    Size: Ultrafiltration SystemVerified Purchase
    Update: As per my review below, I had some trouble installing due to instructions that were not really clear or suited to this particular product, which Ispring says is brand new. Since then they actually tracked me down and cared about what I had to say. According to them they are rewriting the instructions, not shipping with the funny dust caps, and considering additional parts to make the installation go smoother. I was impressed because in this day and age few companies actually seem to care about what their customers really think. I have come to the conclusion that this company does. And the filter system is now working fine, so don't hesitate to buy. I'm leaving my review below in case it takes a while to update the instructions. It might shave a few hours off someones install time. Changed to 5 stars. If you have any problems they will definitely help, and that is a really good thing.

    ================================================================

    Just finished the installation. I'm a pretty handy monkey, but the installation took about 5 hours of my time (including 3 trips to the home improvement store and a some-what helpful phone call to ispring).

    First-off the manual is misleading and clearly written for another product or previous version of this product (or maybe a new-fangled sausage making machine). The parts of the manual that do apply to this product, like how to connect the little push-on connectors, suffer from an excess of brevity and lack of detail and conciseness.

    In an attempt to be helpful to future purchasers of this product, at least until ispring updates these kits and instructions, here's what I learned:

    First tip: the faucet included in my box does not require a 1/2 inch hole, as the instructions state, but a one inch hole. Actually one inch is too tight, make sure you have a 1 1/8 inch hole saw attachment for your drill, and make it a good bi-metal one if you need to cut through a stainless steel sink. Home depot sells rigid brand bits that suit this purpose. It will run you about $15 unless you already have a rigid brand bit shaft (or equivalent).

    Second tip: the faucet that came with my filter has three colored plastic hoses already permanently attached. Red, white and blue (I dig the patriotism). Unfortunately which gets attached where is not mentioned anywhere in the manual. In the manual it says to screw the water hose to the bottom of the faucet. Clearly referring to a different type of faucet. Also if the three hoses were just a little longer you would probably not need to bother adding extension hose (an extra leak risk). More on extension hoses later. The colors are mentioned in the Amazon description, way at the bottom, but it bears repeating. "Connect the BLUE tubing of 3-color tubings on the faucet to cold water line, RED to the 1st stage on the right, WHITE to the 3rd stage on the left." Note: This is #ssbackward if you are from an English speaking country ... just saying.

    Third tip: The filter box itself has funny little horn or funnel shaped things on the ends of the inlet (left) and output (right) angle connectors. These are not mentioned at all in the manual. You can not push the hoses on with these in place (you can try as I did ... if you get excited by frustration) because these are some weird sort of dust plugs. You must pull up with your fingernail on the very outer ring of the connector (pushing it on a spring ever so slightly towards the more bulbous part) then with other hand pull the horn thing out. You can discard these, or I found they make nice hats for very small garden gnomes.

    Basically you can connect the red and white hoses now by pushing them with force into the connector until they snap. Pull back a little to make sure it is connected. If you need to cut extension hose cut it straight, and use the supplied double-sided connectors. I recommend you push the little blue horseshoe shaped clips (supplied) between that outer part of the connector and the more bulbous part. These (I think?) are to make sure the connectors can't shoot apart from water pressure. No mention in manual about these. You can leave them off, as I did at first, if the under side of your sink needs a good spraying out.

    Fourth tip: In order to connect the blue hose to the cold water line you need to first install some parts. My sink had a 3/8 inch stainless steel hose with female compression fitting attached to a male 3/8 compression fitting shutoff valve coming out of the wall. Pretty typical I would assume. The kit comes with a 1/2 inch plumbing style thread, male to female connector, with a hole to thread the valve the blue hose goes onto, in the middle. A way to tap into your cold water line, would be eazy peezy if it was threaded for 3/8 compression fittings, but it's half inch and has coarser plumbing style threads.

    So off to the Home Depot you go. Don't forget another roll of Teflon tape to add to your Teflon tape collection while you are there. Actually the folks at the Home Depot weren't that helpful (surprised?), but the small local hardware store in my old town was. You will need, as it turns out (if your sink is like mine) a 1/2 inch plumbing style male to 3/8 inch compression male adapter to connect your current hose leading to your cold faucet to this new part (btw thread the little supplied valve the kit came with into this part with a little teflon tape first so you can get it good and tight before you are lying on your back under the sink). Then on the other end you will need another short stainless hose (only way I can find to do this with available parts ... why it took three trips) 1/2 inch plumbing female, which attaches to other end of this new part, 3/8 compression female which connects to the part your faucet hose used to be connected to. These parts should run less than $15.

    Tip five : To connect the blue hose to the metal valve from the previous section you need to put it against the nipple, screw off the nut collar and slide it down the hose temporarily, then push it on the nipple all the way, and man it's a tight little bugger (I sprayed the nipple with a little Pam cooking spray, hey it was in the kitchen), then put that nut collar back on and tighten it down real tight with a half inch wrench.

    Why these filters don't come with a 3/8 inch compression fittings on each side of the filter box, so you can just screw your standard hoses on that you can get from any hardware store, is beyond me. There must be a reason. Maybe these filters are designed by the same folks who design those charming "blister packs" that you need a chainsaw to open?

    When I tested the water it was cloudy and tasted a little funny, it got better after I ran the tap for a while. Now it tastes pretty darn good. Even my cat likes it. Hopefully it will not develop leaks.
    45 people found this helpful
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  • Reviewed in the United States on March 29, 2024
    Size: 20 GallonsVerified Purchase
    I bought this T20M tank back in 2021, almost exactly three years ago to the day that this review is being posted.

    The tank is very well made and works flawlessly, but honestly I wasn't happy with the 3/8" shutoff setup (it was plastic and looked fragile and frankly a bit sketchy). However, I needed a pressure container ASAP and I didn't want to mess around with finding separate fittings to make the shutoff burlier. I reasoned that since the tank lives in an out of the way location, there was zero chance of it getting kicked or bumped. So I installed it and didn't give it a second thought.

    Fast forward three years.

    Five days ago I needed to modify some stuff on my RO setup. First step was to shut off the pressure tank… and when I do that, I notice that the shutoff is "loose". Hmm that seems odd. So I go to "tighten" it and it just pops off in my hand followed by pressurized water spraying all over me. I literally kneel there in shock for what seems like a century before I come to my senses and go full-on Hulk mode, pick the tank up, walk it to the laundry sink, and let it drain out. I stood there kinda laughing at the absurdity of the situation and was like "okay now I've got something new to do with my day" lol.

    So I re-plumbed the RO to remove the pressure vessel and contacted iSpring to see if they had a metal replacement fitting or could tell me the specs for something aftermarket. I was upfront that I was way out of warranty.

    I got a reply a day or two later from Nick asking for a screenshot of the receipt so we could move forward with warranty support. So I sent that, and with zero, and I mean ZERO, nonsense he got back to me the next morning and said that iSpring no longer carries replacement cone adapters for that model because they redesigned the tank awhile back (he didn't say why, but I'm going to assume that they needed to address the weaknesses I mentioned above) and that he would be shipping me a new replacement T20M (the new updated version) today even though I was out of warranty.

    I'm not going to go on some rant about the "shareholders first, customers last" mentality of most corporations (oops guess I just did), but this isn't some cheesy $1 cast plastic piece that's basically free to ship we're talking about here. This tank is big and heavy and costs real money to make and ship.

    Look, problems happen. And when a failure occurs with water involved, people get wet. But the fact that iSpring not only took the hit and redesigned the tank BUT THEN stood behind their name instead of hiding behind an expired warranty like most companies would, says EVERYTHING I need to know about them and their products.

    Nick, man, I want to thank you personally for going way beyond my expectations and totally brightening my day. I reached out asking for specs on a fitting so I could fix the tank myself, and instead I've got a redesigned tank shipping out today to replace the old one. Wow.
    32 people found this helpful
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  • MP
    5.0 out of 5 stars Great Replacement and a Time Saver
    Reviewed in Canada on May 18, 2024
    Size: 4 GallonsVerified Purchase
    Less expensive than replacing the entire RO system. The old tank was defective and this one worked perfectly once the reservoir was filled. It has a good reserve of clean water. Much better than having the slow trickle at the speed of the Osmosis system. Now it's WOOSH and your container is full... let the system work at replacing the water before the next time you need some, without you standing there. No more holding the container forever as water dribbles in.
  • Amazon Customer
    5.0 out of 5 stars Works good
    Reviewed in Canada on February 17, 2024
    Size: 5.5 GallonsVerified Purchase
    Came with only one size valve (1/4" I believe), naturally I needed a 3/8" od. Easily obtained.
    Works good! My RO system is back up and running.
  • abred
    5.0 out of 5 stars Great for big family and it's storable on it's side
    Reviewed in Canada on May 24, 2023
    Size: 11 GallonsVerified Purchase
    We have gross well water that goes thought a triple tank filter system before hitting our 6 stage RO drinking water... it's so awful even after the 3 tank filters that if we ran out of RO water, we just didn't drink or cook with water until it replenished. Enter this tank. We have never ran out of RO water, with 6 adult sized humans, 3 large breed dogs and 2 cats that get RO water, and all the cooking and coffee and whatnot that's needed every day. Our undersink area isn't huge and it wouldn't fit standing up, but after confirming with the company that it was ok to do, we laid it on it's side and we've had zero leaks or pressure problems in 1.5 years.
  • ATR
    5.0 out of 5 stars Ein Tolles produkt
    Reviewed in Germany on December 12, 2024
    Size: 4 GallonsVerified Purchase
    Super
  • Client d'Amazon
    5.0 out of 5 stars A remplacer parfaitement un ancien ballon
    Reviewed in France on December 8, 2024
    Size: 4 GallonsVerified Purchase
    Fonctionne très bien. J ai retrouvé une bonne pression. C est assez léger et donc facile à manipuler