---
product_id: 78509340
title: "LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD)"
brand: "liquagen"
price: "¥142610"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/78509340-liquagen-dual-6-stage-under-sink-reverse-osmosis-drinking-aquarium
store_origin: JP
region: Japan
---

# 100 GPD efficiency 0 TDS purity 6 stage filtration LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD)

**Brand:** liquagen
**Price:** ¥142610
**Availability:** ✅ In Stock

## Summary

> 💦 Drink Smart, Live Pure!

## Quick Answers

- **What is this?** LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD) by liquagen
- **How much does it cost?** ¥142610 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/78509340-liquagen-dual-6-stage-under-sink-reverse-osmosis-drinking-aquarium)

## Best For

- liquagen enthusiasts

## Why This Product

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

## Key Features

- • **Aquarium Ready:** Perfect for both drinking and aquatic environments!
- • **Spacious Storage:** 3.2-gallon tank with 2.8-gallon capacity for endless refreshment.
- • **Pure Water, Pure Life:** Transform your tap into bottled-quality hydration!
- • **Mineral Boosting Magic:** Enhances essential minerals for optimal health.
- • **Smart Flush Technology:** Manual flush valve extends system life and reduces leaks.

## Overview

The LiquaGenDual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization Water Filter System delivers ultra-pure water with a 0 TDS rating, ensuring both health and hydration. With a 100 GPD efficiency, it features a manual flush valve for longevity, a spacious 3.2-gallon tank, and the ability to restore essential minerals, making it ideal for both drinking and aquarium use.

## Description

LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD)

## Features

- LiquaGen's dual series includes all the key features necessary to start making ultra pure 0 TDS RO/DI water for your saltwater tank as well as supply crisp, bottled quality drinking water straight from your faucet!
- Helps restore minerals lost in the RO process. Improves the qualities of clean water by adding necessary minerals for proper human development and health minerals, such as Calcium, Magnesium, Sodium, Potassium and others readily found in many natural mineral waters.
- Manual Flush Valve makes this system superior to any other RO/DI system in the market by increasing the life of the unit, reducing possible leaks, and saves you valuable time when flushing the system every few months
- 3.2 gallon pressurized water tank with 2.8 gallon storage capacity + elegant designer faucet
- REMOVE IMPURITIES:- Helps restore minerals lost in the RO process. Improves the qualities of clean water by adding necessary minerals for proper human development and health minerals, such as Calcium, Magnesium, Sodium, Potassium and others readily found in many natural mineral waters. Remove up to 99% of harmful contaminants from your water. Our aquarium filter w/ nuclear grade DI polishes the remaining TDS.

## Product Details

- **Brand:** LiquaGen
- **Special Feature:** Chlorine Reduction
- **Package Information:** Dispenser
- **Installation Type:** Under Sink
- **UPC:** 794811295747
- **Manufacturer:** LiquaGen Water Technology

## Images

![LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD) - Image 1](https://m.media-amazon.com/images/I/91uFnG6squL.jpg)
![LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD) - Image 2](https://m.media-amazon.com/images/I/91Nx9WStb7L.jpg)
![LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD) - Image 3](https://m.media-amazon.com/images/I/9102CaOBUeL.jpg)
![LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD) - Image 4](https://m.media-amazon.com/images/I/91d1cIxLogL.jpg)
![LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD) - Image 5](https://m.media-amazon.com/images/I/61Hs12OMmCL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great System
*by K***N on June 23, 2020*

The media could not be loaded. I love that you get a great product for a reasonable price. I bought this primarily to supply water for my 55 gallon aquarium. That is the yellow line I show in the video. It delivers water de ionized with a ph of 6.86 and TDS of 20. The drinking water out of the filter delivered through the sink mounted faucet has a TDS of 36 and my water supply going to the filter with no filtration is TDS 0f 365. So it does work well TDS is total dissolvable solids.I have installed them before so this was not a first for me but I must say the instructions in this kit was not the best to understand and did not explain key items about my specific 6 stage system I also had to make several trips to the hardware store to pick up missing or incorrect fitting that were not included in the box with the product. Online videos of instillation help but again not an installation video for this specific model which would have helped. In summary great product but may require a experienced installer if you do not find yourself to be great at DIY projects.

### ⭐⭐ Terrible Customer Service
*by A***O on January 19, 2024*

Product worked fine for a good while then when I had a clear filter canister suddenly crack and leak, I tried to order a new one. Found out they discontinued my model and I got the runaround and just can’t seem to get a filter canister so now I have no choice but to buy a whole new system. Not cool at all. I gave up trying to get a replacement after 7 separate attempts of phone calls chats and so forth. Not buying from them ever again.

### ⭐⭐⭐⭐ Excellent Product Quality
*by R***E on April 10, 2020*

I've used RO systems for years. It began with a need for highly pure drinking water rather than what I could get out of the tap. And then I dove into salt water reefing, and I discovered the joys of combining an RO system for drinking water and for aquarium water. When my old home made system finally died right in the middle of the Covid crisis, I found this unit and I ordered it. It arrived quickly (all things considered). But I must agree with other people that the included instructions are poor. As a matter of fact, they didn't match the system I ordered at all. Don't misunderstand - the instructions they sent were beautifully published. But they were not for my system - just a generic system. But, with an chemical engineering degree and having built my own before, this was no problem. I did find better instructions on their website, but still not totally accurate to what was sent. But I don't care about any of that. I just reference it to say that if you don't know your way around filters, just spend some time with their support folks and you will be just fine. These folks are responsive and easy to talk to. It's easy. And they have done a good job of providing color coded tubing to help make the hookup easier. The only reason I have given four stars instead of five, is because of the condition of the 1st, 2nd, and 3rd stage filters upon arrival. They were not wrapped. All three were out of their wrapper. I should clarify that they were simply dropped into their respective housings. Fortunately, I had a supply of the sediment, GAC (granular activated carbon), and carbon filters from my old system and they fit just fine. Now, to be fair, the RO membrane, the DI cartridge and the remineralization/carbon cartridge were pre-installed and therefore "out of the wrappers" as well. But that's a little different. They weren't open to the air. Given the Covid situation (and the fact that atmospheric exposure deplete the effectiveness of carbon filters), those other filters should have come wrapped. This IS supposed to be a sanitary system. But that is the only real complaint. Now, let me deal with the folks who say "it's poor quality" and "parts are breaking." These are standard consumer grade parts. Yes, you will occasionally find a part that is broken. But ALL these parts can be found at your local big box store. So if you needed a part, you can get a part. But in my 23 years of working as a chemical engineer and dealing with parts just like these on a weekly basis both at work and at home, these parts are NOT low quality. They are standard consumer grade quality and with few exceptions will serve you well if you treat them how they are supposed to be treated. No, you cannot wrench down hard of plastic parts. They aren't designed for it. That doesn't make them low quality. Overall, I was very pleased with the fit and finish of this product. If I ever need to order another system again, I'll definitely be coming back to these folks. I only ask that they leave the pre-RO filters in their wrappers. For my part, I threw those away and replaced them with my own. No big deal as these filters aren't expensive anyway. "Why didn't I return it if it bothered me so much?" Because filters are consumable items and, again, they aren't expensive, and I just didn't care enough. I only mention it because YOU might care more than I did. But yes. I recommend a purchase. Oh, and hit the Liquagen website for a much better installation manual. I found mine on their Installation Manuals page and it was titled: "6 Stage RO/DI 2 on top." "Why don't I just give you the URL?" you ask. Because it might change. And I believe people should not be spoon fed. You can search as well as I can. :-) Buy this system! I don't think you'll regret it.

## Frequently Bought Together

- LiquaGen - Dual 6 Stage Under Sink Reverse Osmosis Drinking & Aquarium Deionization (RO/DI) Water Filter System (Universal pH Alkaline 100 GPD)
- HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy,Blue & White
- Malida Stainless Water Pressure Test Gauge, Water Pressure Detector for Aquarium Meter 0-1.6MPa 0-220psi Reverse Osmosis System Pump with 1/4.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-18*