

💧 Elevate your hydration game with pressure-perfect purity!
The iSpring T55M is a 5.5-gallon pre-pressurized metal water storage tank designed specifically for reverse osmosis systems. Featuring NSF/ANSI certified food-grade butyl diaphragm and stainless steel valve fittings, it guarantees tasteless, odorless water with consistent pressure (7-10 psi). Its versatile design allows installation in vertical or horizontal positions, complemented by a tank stand and ball valve for easy setup. Trusted by thousands for durability and performance, it’s the smart upgrade for any modern kitchen water filtration setup.



















| ASIN | B01CES39N0 |
| Best Sellers Rank | 587,129 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 105 in Water Tanks |
| Brand | iSpring |
| Colour | Cream |
| Customer Reviews | 4.6 4.6 out of 5 stars (5,295) |
| Date First Available | 1 Mar. 2016 |
| Item Weight | 3.92 kg |
| Model Number | T55M |
| Product Dimensions | 43.18 x 30.48 x 30.48 cm; 3.92 kg |
| Special Features | NSF certified |
W**N
Good tank, works well.
Good item, very easy to install, I gave it a few rinses before use but nothing nasty came out, Its been in service a bit now with no issues or loss of pressure. Everything fitted fine so its well built. Good item for the price.
A**R
Top quality product, great seller
I am absolutely thrilled with my RO pressure tank! This product has completely exceeded my expectations in terms of performance and durability. I'm giving it a solid five-star rating! Tank maintains consistent pressure levels throughout the day, ensuring a steady flow of purified water whenever I need it. The build quality of this pressure tank is exceptional. It feels sturdy and well-made, capable of withstanding the rigors of daily use without any signs of wear or deterioration. I'm confident that it will continue to perform flawlessly for years to come. It fits neatly under my sink without taking up too much room, which is perfect for my kitchen. I appreciate the thoughtful design that prioritizes functionality without sacrificing space. I also want to commend the company for their exceptional customer service. When I had a question, their support team was incredibly helpful and responsive. It's refreshing to encounter a company that truly values their customers and goes above and beyond to ensure their satisfaction. Overall, I couldn't be happier with my RO pressure tank. It's a top-quality product that delivers on its promises, and coupled with outstanding customer service, I highly recommend it to anyone in need of reliable water pressure for their RO system.
U**I
Good quality
Super, I’ll recommend it works perfect
T**L
the real deal 5/5 . for the price and quality you can't go wrong.
you need 1/4 to 3/8 compression fit to use it at max ooh you know what you are buying. the only issue you will face is how much pressure to put in to the tank to get really powerful output . I used 32psi pressure in empty tank to get my frizzle tankless pd1000 system to give me around 1 litre of high pressure output before the ro motor kicks in. and the pressure is as such that it can fill a 1.5 litre bottle within 15 seconds. if used as the company set pressure you can easily get 6 to 7 litres of ro water albeit at a slower rate. there is no water taste so quality is also very good. I however used a direct 1/4 to compression 3/8 fitting to get the max input and output from the tank . this is the only issue for me . the stock 1/4 to push fit1/4 is too small a diameter to fill and discharge water quickly so u used the compression fit to use a 3/8 pipe. comes with stabilisation base. can be mounted vertically or horizontally. I use it lying down. colour is nice as well. does what it says. if you have tankless system this will help ease the need to buy larger gpm units as you have already read above I still needed to use this with 1000 gpd direct unit for pressure refills.
A**M
Large enough for a family
Great tank, keeps the pressure nicely
N**R
Efficient and essential storage vessel for supplying RO water to a tap
This is an essential piece of kit if you intend running the output of an RO Filter to a tap. RO is produced as a trickle so you must have a storage vessel to provide a reasonable supply to a tap. It works thanks to an internal air bladder which comes inflated to a determined pressure. The incoming RO feed compresses the air bladder and not vice-versa because water cannot readily be compressed. This pressure forces water out to the tap at a decent pressure. I have thus far had no need to pump up the bladder but all that is required is a bicycle pump if this should ever be necessary. Just remember that the stated capacity refers to the overall internal capacity including the pressurised bladder so the water capacity will be considerably less than the stated capacity. You must remember to flush out the cylinder and drain it two or three times before using the initial output.
B**E
Easy to fit, nice upgrade
Bought this to replace the smaller tank which came with my filter system several years ago, which was no longer holding pressure. Very pleased with the upgrade. Tank with valve is about 18" high.
P**T
good quality
very good and sturdy
A**E
Top Qualität Anlage funktioniert einwandfrei
A**ー
投稿が遅くなりました。 もう何年長い間利用していても、特に問題なく利用しています。 もちろん、水の出方が弱くなった時は、空気を入れるなどのメンテナンスは必要です。フィルターを替えるタイミングで、メンテナンスをするくらいです。
J**O
Un tanque de buena calidad y de buen precio, por su tamaño ya no ne he quedado sin agua potable cuando tengo invitados en casa ni cuando los filtros estan cerca de su vida util.
C**N
Excelente calidad, compatible con la marca BBAqua. Fácil instalación y perfecto funcionamiento.
S**O
Il serbatoio iSpring T32M da 4 galloni è perfetto per il mio sistema di osmosi inversa. La valvola a sfera da 1/4" è inclusa e facile da installare, e la costruzione in acciaio inox garantisce durata. La pressione è stabile e il riempimento è rapido. In sintesi, supera le mie aspettative e lo raccomando senza riserve.
Trustpilot
2 weeks ago
2 weeks ago