---
product_id: 59886270
title: "Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters"
brand: "express water"
price: "NT$1866"
currency: TWD
in_stock: true
category: "Express Water"
url: https://www.desertcart.tw/products/59886270-express-water-filter-upgrade-kit-for-reverse-osmosis-and-under
store_origin: TW
region: Taiwan
---

# Easy flex clips for hassle-free installation 100% food-grade BPA-free tubing Includes adapters for ¼” threaded & quick connect Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters

**Brand:** express water
**Price:** NT$1866
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water game—because your health deserves the upgrade!

## Quick Answers

- **What is this?** Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters by express water
- **How much does it cost?** NT$1866 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/59886270-express-water-filter-upgrade-kit-for-reverse-osmosis-and-under)

## Best For

- express water enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Safe:** Crafted with BPA-free polyethylene tubing for clean, odorless, and tasteless water
- • **Pure Hydration Upgrade:** Add alkaline, deionization, or UV sterilization to your RO system effortlessly
- • **Quick & Tool-Free Setup:** Easy flex filter clips and extra tubing make installation a breeze—no plumber needed
- • **Universal Compatibility:** Fits any standard reverse osmosis or under-sink filtration system with included adapters
- • **Multi-Stage Filtration Boost:** Enhance your water quality with an additional filtration stage for ultimate purity

## Overview

The Express Water Filter Upgrade Kit enhances your existing reverse osmosis or under-sink filtration system by adding a new filtration stage. Featuring 100% food-grade BPA-free polyethylene tubing and adapters for both ¼” threaded and quick connect filters, it ensures a durable, safe, and universally compatible installation. Designed for easy, tool-free setup, this kit allows you to incorporate alkaline, deionization, or ultraviolet sterilization to achieve superior water purity.

## Description

Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters - desertcart.com

## Features

- Simply Pure - Keep your water clean, odorless, and tasteless with 100% food grade BPA free polyethylene tubing
- The Highest Quality - Durable reusable pieces for a lasting installation
- Easy Installation - Easy flex filter clips and extra tubing for quick hassle free setup
- For Any Application - Use with any standard Reverse Osmosis Systems
- Upgrade Your Water - Exactly what you need to add Alkaline, Deionization, or an Ultraviolet Sterilizer to your Purifier

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075Y4MWSQ |
| Best Sellers Rank | #6,872 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Under-Sink & Countertop Filtration |
| Brand Name | EXPRESS WATER |
| Customer Reviews | 3.8 3.8 out of 5 stars (291) |
| Global Trade Identification Number | 00653590999096 |
| Included Components | Filter Upgrade Kit for Reverse Osmosis |
| Installation Type | Under Sink |
| Item Type Name | Filter Upgrade Kit for Reverse Osmosis |
| Item Weight | 0.11 Kilograms |
| Manufacturer | Express Water |
| Material Type | Polyethylene |
| Model Name | PRTUPKIT14 |
| Model Number | PRTUPKIT14 |
| Other Special Features of the Product | Multi Stage Filtrartion |
| Part Number | PRTUPKIT14 |
| Purification Method | Reverse Osmosis, Ultraviolet |
| UPC | 653590999096 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** EXPRESS WATER
- **Global Trade Identification Number:** 00653590999096
- **Included Components:** Filter Upgrade Kit for Reverse Osmosis
- **Installation Type:** Under Sink
- **Item Weight:** 0.11 Kilograms
- **Material:** Polyethylene
- **Model Name:** PRTUPKIT14
- **Purification Method:** Reverse Osmosis, Ultraviolet
- **Special Feature:** Multi Stage Filtrartion
- **UPC:** 653590999096

## Images

![Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters - Image 1](https://m.media-amazon.com/images/I/61wB9wf8GdL.jpg)
![Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters - Image 2](https://m.media-amazon.com/images/I/71+DDhfXeYL.jpg)
![Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters - Image 3](https://m.media-amazon.com/images/I/71jGIeSOU6L.jpg)
![Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters - Image 4](https://m.media-amazon.com/images/I/61Vwv3gS+WL.jpg)
![Express Water Filter Upgrade Kit for Reverse Osmosis and Under Sink Water Filtration System – Add a New Filtration Stage to Your System – Includes Adapters for ¼” Threaded and Quick Connect Filters - Image 5](https://m.media-amazon.com/images/I/71S2XZ7D4xL.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: Can i add 3 express filters to my counter top express model, the uv, acb, and alkaline...is this possible and how many of these kits would i need?**
A: 1 kit to add 2 filters.  So, for 3 filters you need 2 kits. But, I'm not sure this fits the countertop model. Filters look the same, but I don't have them.

**Q: What fittings are needed to install just the "ION" filter under a sink for the cold water?**
A: I don't know what ion filter you wish to install. But, this set is for adding any filter of your choice to basically any under sink reverse osmosis filter assembly. So, it might work if the filter of your choice has 1/4" tubing connections. Your filter of choice must match the form factor of the other reverse osmosis filters so that the clips hold the filter in place.

## Frequently Bought Together

- EXPRESS WATER PRTUPKIT14 Filter Upgrade Kit for Reverse Osmosis, Universal, White
- Express Water – Alkaline Water Filter Replacement – Mineral, Antioxidant, pH+ – 10 Inch – Under Sink and Reverse Osmosis System
- Express Water – UV Water Filter Replacement – UV Water System – 12 Inch UV Light Housing with 10 inch Bulb – Under Sink and Reverse Osmosis System

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-07-26*