---
product_id: 164799426
title: "iSpring T55M 5.5 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems, White"
brand: "ispring"
price: "₩575882"
currency: KRW
in_stock: true
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.kr/products/164799426-ispring-t55m-5-5-gallon-residential-pre-pressurized-water-storage
store_origin: KR
region: South Korea
---

# 5.5 gal metal tank capacity Pre-pressurized 7-10 psi for steady flow NSF/ANSI certified food-grade materials iSpring T55M 5.5 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems, White

**Brand:** ispring
**Price:** ₩575882
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with pressure-perfect purity!

## Quick Answers

- **What is this?** iSpring T55M 5.5 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems, White by ispring
- **How much does it cost?** ₩575882 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/164799426-ispring-t55m-5-5-gallon-residential-pre-pressurized-water-storage)

## 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

- • **Built to Last:** Stainless steel 1/4" NPT valve and durable metal tank designed for long-term, maintenance-free use.
- • **Certified Pure & Safe:** NSF/ANSI certified food-grade butyl diaphragm ensures tasteless, odorless water every time.
- • **Versatile Installation:** Efficient discharge in both vertical and horizontal positions—fits seamlessly under your sink.
- • **Plug & Play Convenience:** Comes with a ball valve and tank stand for quick, hassle-free setup—no plumber needed.
- • **Reliable 5.5 Gallon Capacity:** Generous water storage tailored for your RO system’s peak performance.

## Overview

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.

## 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.

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.
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.

## 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 | 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 |

## 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 5.5 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems, 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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 quality
*by U***I on 28 December 2025*

Super, I’ll recommend it works perfect

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-01*