---
product_id: 164799426
title: "iSpring T55M RO Storage Tank, 5.5 Gal, Pressurized, White"
brand: "ispring"
price: "€ 128.58"
currency: EUR
in_stock: true
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.sk/products/164799426-ispring-t55m-ro-storage-tank-5-5-gal-pressurized-white
store_origin: SK
region: Slovakia
---

# 5.5 gal high-capacity Stainless steel 1/4" NPT valve 7-10 psi pre-pressurized iSpring T55M RO Storage Tank, 5.5 Gal, Pressurized, White

**Brand:** ispring
**Price:** € 128.58
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with steady, pure water on demand!

## Quick Answers

- **What is this?** iSpring T55M RO Storage Tank, 5.5 Gal, Pressurized, White by ispring
- **How much does it cost?** € 128.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/164799426-ispring-t55m-ro-storage-tank-5-5-gal-pressurized-white)

## Best For

- ispring enthusiasts

## Why This Product

- Trusted ispring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium Build Quality:** Stainless steel valve and metal tank designed for long-lasting, maintenance-free use.
- • **Versatile Installation:** Works flawlessly in both vertical and horizontal positions to fit your space.
- • **Optimized Pressure Control:** Pre-pressurized at 7-10 psi for consistent, reliable water flow every time.
- • **Durable Food-Grade Diaphragm:** Tasteless, odorless water chamber ensures pure, fresh water with every draw.
- • **Spacious 5.5 Gallon Capacity:** Store more purified water and never run dry during busy days.

## Overview

The iSpring T55M is a 5.5-gallon pressurized RO storage tank featuring a food-grade butyl diaphragm for pure, odorless water. Pre-pressurized between 7-10 psi, it ensures consistent water flow and fits under-sink spaces with vertical or horizontal installation. Built with a stainless steel valve and durable metal tank, it’s NSF certified and designed for long-term reliability in reverse osmosis systems.

## Description

Shop iSpring T55M RO Storage Tank, 5.5 Gal, Pressurized, White | For reverse osmosis systems. High-capacity storage.. Free delivery on eligible orders of £20 or more.

Review: 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.
Review: 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.

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01CES39N0 |
| Best Sellers Rank | 47,656 in DIY & Tools ( See Top 100 in DIY & Tools ) 22 in Under-Sink Filters |
| Brand | iSpring |
| Capacity | 5.5 gallons |
| Container Type | Can |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 5,537 Reviews |
| Global Trade Identification Number | 00662425080236 |
| Included Components | User Manual |
| 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 | Metal tank |
| 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 |
| Product dimensions | 28L x 28W x 42H centimetres |
| Purification Method | Reverse Osmosis |
| Special feature | NSF certified |
| Supported Water TDS Level Maximum (PPM) | 50 |
| UPC | 662425080236 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 100 Degrees Fahrenheit |

## Product Details

- **Brand:** iSpring
- **Capacity:** 5.5 gallons
- **Included components:** User Manual
- **Installation type:** Under Sink
- **Material:** Metal tank
- **Package information:** Can
- **Power source:** Manual Operation
- **Product dimensions:** 28L x 28W x 42H centimetres
- **Purification method:** Reverse Osmosis
- **Special feature:** NSF certified

## Images

![iSpring T55M RO Storage Tank, 5.5 Gal, Pressurized, White - Image 1](https://m.media-amazon.com/images/I/51m-PzNd+HL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can I connect 2 tanks together for more water storage?**
A: I put two 3.2 gal tanks together with a tee last month. It works fantastic!!

**Q: Anyone know if this will work for Whirlpool RO systems?  The support rep told me any RO tank would work.  Anyone use this for another system?**
A: I don't think it matters what RO system you have.  If it has the option for a reserve tank and the fitting works, then it should fill with water.

**Q: What is the pressure rating for the tank. Can it handle 60 psi?**
A: Remember that the RO system water valve regulates the "internal" pressure, so the tank is not going to see the actual water line pressure. Most valves operate at 65%, so if your water line pressure is 60 psi, the pressure at the tank generally won't be more than 40 PSI. In most setups you'd need the pressure on the water line to be around 92 PSI to get 60 PSI on the tank.

**Q: What is the diameter of the 5.5 gal tank?**
A: Thanks for the question! The diameter of the tank is 12" x 16" (H)

Kindest,
iSpring Team

## Customer Reviews

### ⭐⭐⭐⭐⭐ Top quality product, great seller
*by A***R on 25 March 2024*

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.

### ⭐⭐⭐⭐⭐ Good tank, works well.
*by W***N on 15 June 2025*

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.

### ⭐⭐⭐⭐⭐ Efficient and essential storage vessel for supplying RO water to a tap
*by N***R on 19 September 2023*

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.

## Frequently Bought Together

- iSpring T55M 5.5 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems , White
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**Shop now:** [https://www.desertcart.sk/products/164799426-ispring-t55m-ro-storage-tank-5-5-gal-pressurized-white](https://www.desertcart.sk/products/164799426-ispring-t55m-ro-storage-tank-5-5-gal-pressurized-white)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-10-11*