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💧 Elevate your hydration game with iSpring’s sleek, pressurized RO storage tank!
The iSpring T55M is a 5.5-gallon pressurized reverse osmosis storage tank featuring a food-grade butyl diaphragm for tasteless, odorless water. It includes a stainless steel 1/4" NPT valve with ball valve, supports both vertical and horizontal discharge, and comes pre-pressurized between 7-10 psi for immediate water flow. NSF certified and designed for under-sink installation, it’s a reliable, high-capacity solution for clean water storage.


















| Asin | B01CES39N0 |
| Best Sellers Rank | 53,356 in DIY & Tools (See Top 100 in DIY & Tools) 32 in Under-Sink Filters |
| Brand | iSpring |
| Capacity | 5.5 gallons |
| Container Type | Can |
| Country Of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (5,540) 4.6 out of 5 stars |
| Global Trade Identification Number | 00662425080236 |
| Included Components | User Manual |
| Installation Type | Under Sink |
| Item Dimensions L X W X H | 28L x 28W x 42H centimetres |
| Item Highlight | For reverse osmosis systems. High-capacity storage. |
| Item Type Name | Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems |
| Item Weight | 4.3 Kilograms |
| Lowertemperature Range | 40 Degrees Fahrenheit |
| Manufacturer | iSpring Water Systems |
| Manufacturer Part Number | T55M |
| Material Type | Metal tank |
| Model Name | T55M 5.5 Gallon Residential |
| Model Number | T55M |
| Number Of Items | 1 |
| Other Special Features Of The Product | NSF certified |
| Power Source | Manual Operation |
| Purification Method | Reverse Osmosis |
| Supported Water Tds Level Maximum Ppm | 50 |
| Unit Count | 1.0 count |
| Upc | 662425080236 |
| Upper Temperature Rating | 100 Degrees Fahrenheit |
User
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.
User
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.
User
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.
User
Good quality
Super, I’ll recommend it works perfect
User
Tank
Great
User
Never lost pressure, easy to hook up.
I can't fault this, had it a year now and it never lost pressure. I use Milton to clean it every 6 months or so. Easy to hook up with 6mm push fitting hoses. Has the pressure valve there if , if, you need to re-pressurise. I use a Carbon filter before the mineral cartridge to keep the water tasting and smelling better long term. Of course you'll eventually have to clean it because of the rubber bladder inside.
User
Does the job
Replacing my faulty tank from Osmio Water, this holds a even better pressure on the water flow. Feels very solid and represents excellent value for money.
User
good quality
very good and sturdy
User
Top verarbeitet – Perfekte Größe für kleine Haushalte!
Wer eine zuverlässige Speicherlösung für seine Umkehrosmoseanlage sucht, trifft mit dem iSpring T32M eine sehr gute Wahl.Meine Eindrücke:Ideale Kapazität: Die 12 Liter (3.2 Gallonen) Bruttovolumen sind absolut ausreichend für den täglichen Bedarf. In der Praxis reicht das gut für einen 2-Personen-Haushalt aus, um immer genügend gefiltertes Wasser parat zu haben.Qualität: Der Tank ist top verarbeitet. Die Materialien wirken hochwertig und die Tatsache, dass er lebensmittelecht ist, gibt ein sicheres Gefühl bei der Trinkwasserlagerung.Anschluss: Der standardmäßige 1/4"-Anschluss macht die Integration in bestehende Systeme kinderleicht und hält absolut dicht.Fazit:Ein grundsolider Wassertank, der genau das hält, was er verspricht. Für Paare oder kleine WGs die perfekte Ergänzung zur Osmoseanlage. Klare Empfehlung!
User
品質は大切です
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。
User
Muy recomendable
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.
User
Ottimo tank
Sono molto soddisfatto del tank. L ho ricevuto in perfette condizioni. L ho fatto installare da un tecnico. Rispetto al tank che avevo prima, di 2 galloni, il flusso d acqua in uscita è maggiore. Ottimo
User
Un depósito de calidad
Buena construcción, buena capacidad, buena presión del agua. Justo lo que necesitaba.
Trustpilot
2 months ago
3 weeks ago