---
product_id: 75727762
title: "FS-TFC 5-Stage Reverse Osmosis Water Filtration System 100GPD Fast Flow Plus Extra 4 Filter for Free (FS-RO-100G-A)"
brand: "fs-tfc"
price: "A$439"
currency: AUD
in_stock: true
reviews_count: 8
category: "Fs Tfc"
url: https://www.desertcart.com.au/products/75727762-fs-tfc-5-stage-reverse-osmosis-water-filtration-system-100gpd
store_origin: AU
region: Australia
---

# 100 GPD fast flow rate 1:1 low drain ratio, eco-friendly DIY easy installation FS-TFC 5-Stage Reverse Osmosis Water Filtration System 100GPD Fast Flow Plus Extra 4 Filter for Free (FS-RO-100G-A)

**Brand:** fs-tfc
**Price:** A$439
**Availability:** ✅ In Stock

## Summary

> 💧 Drink Pure, Live Smart — The Ultimate RO Upgrade You Can’t Miss!

## Quick Answers

- **What is this?** FS-TFC 5-Stage Reverse Osmosis Water Filtration System 100GPD Fast Flow Plus Extra 4 Filter for Free (FS-RO-100G-A) by fs-tfc
- **How much does it cost?** A$439 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/75727762-fs-tfc-5-stage-reverse-osmosis-water-filtration-system-100gpd)

## Best For

- fs-tfc enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Setup:** Complete kit with clear instructions and videos—install yourself in under 2 hours.
- • **Compact & Versatile:** Sleek under-sink design fits kitchens, bathrooms, RVs, and offices without hassle.
- • **Save Money & Energy:** No electricity needed and low water waste ratio means eco-friendly savings.
- • **Pure Water, Fast Flow:** Delivers 18L/hour for instant hydration—1 cup in 5 seconds.
- • **5-Stage Filtration Power:** Removes 99.999% of contaminants including fluoride, lead, and VOCs for crystal-clear taste.

## Overview

The FS-TFC 5-Stage Reverse Osmosis System offers a high-capacity 100GPD filtration with 99.999% contaminant removal, including heavy metals and fluoride. Its compact design fits easily under sinks in homes, offices, and RVs. With a fast flow rate of 18 liters per hour and a user-friendly DIY installation kit, it delivers fresh, great-tasting water instantly. The system operates without electricity, features a low 1:1 drain ratio for water efficiency, and includes an extra set of filters for cost savings. Backed by NSF/ANSI 58 certification and a 2-year warranty, it’s a smart, eco-conscious choice for health-focused professionals.

## Description

FS-TFC 5-Stage Reverse Osmosis Water Filtration System 100GPD Fast Flow Plus Extra 4 Filter for Free (FS-RO-100G-A) - desertcart.com

Review: Crystal-Clear Water with Easy Setup - I installed the FS-TFC 5-Stage Reverse Osmosis System under my kitchen sink, and the results have been outstanding. The water tastes noticeably better — no chlorine smell, no metallic aftertaste — just clean, refreshing water perfect for drinking, cooking, and even brewing coffee. Setup was surprisingly simple. The instructions were clear, and I didn’t need professional help. The compact design fits easily under the sink, and the 100GPD fast flow rate means I never run out of filtered water. I also appreciate the extra set of filters included — a thoughtful touch that saves money down the line. The system removes up to 99% of contaminants, including fluoride, lead, arsenic, and heavy metals. The wastewater ratio is about 3:1, which is standard for RO systems, and the filters last 6–12 months depending on usage. If you’re looking for a reliable, affordable reverse osmosis system that doesn’t take up much space and delivers excellent water quality, this one’s a winner.
Review: Amazing water; Easy to install - I’m not often this impressed, but I gotta say I AM with this under-sink RO system! I bought a house in the country thats on well water, and while the water tested great, its hard water with a lot of calcium in it. The calcium deposits leave behind a a grainy/crystalized powder that ruined a Kurg coffee maker and an Ice Maker and we also discovered that my wife has a sensitivity to the heavy calcium and it has caused some health issues for her. I priced out a whole home system, but thats out of my budget. I discovered these under-sink systems that I can install myself and were WAY more affordable. I chose this system because it was the most compact 5 stage RO system I could find. This kitchen hasen’t been remodeled since the early 90’s and i have limited space under the sink. Installation was EASY, took less then 2 hours, and the kit contained everything needed (except for a few basic hand tools; drill, crescent wrench, and a few wood screws). After turning the water back on and checking for leaks (none) it took about 2 hours for the system to fully fill up (my well is set to 45/80 psi), then a quick system flush…. And now we have beautiful, clean, healthy RO water, and it tastes Great! Good for my appliances and healthier for my wife. Home Run! All from a kit for under $150.00 AND it came with a set of replacement filters to!

## Features

- Supreme quality - designed, and assembled to guarantee water safety & your health.Remove Rate up to 99.999%，including chlorine, taste, odor, VOCs, as well as toxic fluoride, arsenic, lead, nitrates, heavy metals and 1000+ contaminants.Experience clean, safe, good-tasting water every time you turn on the faucet. Enjoy crystal clear ice cubes, fresher tea and coffee, better tasting foods, healthier baby formula – even better than most bottled water.
- Mini Size -High Flow Designed :Developed for household and commercial use, This Water Filtration System can be installed in your kitchen, bathroom, RV, or office .The tested full flow rate is 18L per hour at 60 Psi,means you can get 1 cup (200ml) of pure,fresh and great tasting water in 5 seconds.Completely satisfied with your daily water needs.
- Easy, do-it-yourself installation, Fits under a standard kitchen sink, with all parts included and clear, well-organized instructions and videos. Don’t need waste money on professional installation. quick and easy-to-understand design means you can install and understand everything about your new water filtration system.
- Money-saving:The Reverse Osmosis System works without electricity and 1: 1 low drain ratio,thereby reducing the amount that you spend on electricity and water.On average, by spending only $50 per year (13 cents per day) for the filter replacement, you and your family can enjoy safe and clean water.
- Provides you the ultimate satisfaction and peace of mind with our lifetime support and 2 year manufacturer warranty with registration.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F71QR5L |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #84,636 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #181 in Under-Sink & Countertop Filtration |
| Brand | FS-TFC |
| Certification | Nsf/Ansi 58 |
| Color | White |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,670) |
| Date First Available | July 2, 2018 |
| Installation Type | Under Sink |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 13 pounds |
| Item model number | FS-RO-100G-A |
| Manufacturer | FS-TFC Water System |
| Maximum Flow Rate | 18 Liters Per Hour |
| Model Name | FS-RO-100G-A |
| Operating Pressure Range | 30-85 PSI |
| Package Information | Bottle |
| Part Number | FS-RO-100G-A |
| Power Source | Ac |
| Product Dimensions | 11.5"L x 5"W x 11.5"H |
| Special Feature | Reduce TDS |
| Special Features | Reduce TDS |
| Supported Water TDS Level Maximum (PPM) | 500 |
| Warranty Description | 2 Years |

## Product Details

- **Brand:** FS-TFC
- **Capacity:** 100 Gallons
- **Included Components:** RO System, Faucet, Tank, Feedwater Adapter, Extra Tool and Filter Set
- **Installation Type:** Under Sink
- **Material:** Plastic, Stainless Steel
- **Package Information:** Bottle
- **Power Source:** Ac
- **Product Dimensions:** 11.5"L x 5"W x 11.5"H
- **Purification Method:** Reverse Osmosis
- **Special Feature:** Reduce TDS

## Images

![FS-TFC 5-Stage Reverse Osmosis Water Filtration System 100GPD Fast Flow Plus Extra 4 Filter for Free (FS-RO-100G-A) - Image 1](https://m.media-amazon.com/images/I/610HbldY8LL.jpg)

## Questions & Answers

**Q: Installed all new filters. no water flowing from ro filter clean side. continuous flow to drain. was working good for 6 months. what is the cause?**
A: Hi Chris , you may have to change the filter. I had the same problem here because of a lot of calcification ,poor water quality so to prevent  short filter life I install a pre filter before the reverse osmosis unit.  hope that be of help to you.

**Q: Does this unit come with a auto shut off valve?**
A: No! The main input line does not have a high-flow auto shutoff. The line is controlled by a manual shutoff from the pre-existing cold water line.

**Q: Where can i find the replacement filter ?**
A: If not Amazon, try Home Depot. That is where we found our original filter. This Amazon one was a replacement for that one, which cost the same as the original, but came with a set of replacement filters! Same price, for a far better deal.

**Q: Can this be switched between treated and untreated? I only need drinking and cooking water to be treated.**
A: No.   This is a separate (included) faucet that provides the filtered water.   Your normal sink faucet will continue to work as it is now.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Crystal-Clear Water with Easy Setup
*by T***K on November 8, 2025*

I installed the FS-TFC 5-Stage Reverse Osmosis System under my kitchen sink, and the results have been outstanding. The water tastes noticeably better — no chlorine smell, no metallic aftertaste — just clean, refreshing water perfect for drinking, cooking, and even brewing coffee. Setup was surprisingly simple. The instructions were clear, and I didn’t need professional help. The compact design fits easily under the sink, and the 100GPD fast flow rate means I never run out of filtered water. I also appreciate the extra set of filters included — a thoughtful touch that saves money down the line. The system removes up to 99% of contaminants, including fluoride, lead, arsenic, and heavy metals. The wastewater ratio is about 3:1, which is standard for RO systems, and the filters last 6–12 months depending on usage. If you’re looking for a reliable, affordable reverse osmosis system that doesn’t take up much space and delivers excellent water quality, this one’s a winner.

### ⭐⭐⭐⭐⭐ Amazing water; Easy to install
*by M***N on June 24, 2024*

I’m not often this impressed, but I gotta say I AM with this under-sink RO system! I bought a house in the country thats on well water, and while the water tested great, its hard water with a lot of calcium in it. The calcium deposits leave behind a a grainy/crystalized powder that ruined a Kurg coffee maker and an Ice Maker and we also discovered that my wife has a sensitivity to the heavy calcium and it has caused some health issues for her. I priced out a whole home system, but thats out of my budget. I discovered these under-sink systems that I can install myself and were WAY more affordable. I chose this system because it was the most compact 5 stage RO system I could find. This kitchen hasen’t been remodeled since the early 90’s and i have limited space under the sink. Installation was EASY, took less then 2 hours, and the kit contained everything needed (except for a few basic hand tools; drill, crescent wrench, and a few wood screws). After turning the water back on and checking for leaks (none) it took about 2 hours for the system to fully fill up (my well is set to 45/80 psi), then a quick system flush…. And now we have beautiful, clean, healthy RO water, and it tastes Great! Good for my appliances and healthier for my wife. Home Run! All from a kit for under $150.00 AND it came with a set of replacement filters to!

### ⭐⭐⭐⭐⭐ Great System
*by C***R on September 21, 2025*

I had a new expensive Max Water unit that split and flooded my kitchen. Amazon would not stand behind it. I ordered this unit and it was a pretty straight forward install. Not 1 leak from install. You do have to make sure the tubing is inserted all the way or the fittings will leak. I added a re-mineralization cartridge on mine and the taste of the water is incredible. My coffee taste better as well. I am very happy with the smaller size.

## Frequently Bought Together

- FS-TFC 5-Stage Reverse Osmosis Water Filtration System 100GPD Fast Flow Plus Extra 4 Filter for Free (FS-RO-100G-A)
- FS-TFC Reverse Osmosis Water Filtration System FS-RO-100G-A 1-Year Replacement Filter Kit,8 Pack
- Malida 1/4 inch O.D. Length 32.8ft(10 meters) RO Water Tubing, Hose Pipe for RO Water purifiers System,+ 1/4 O.D quick connector 10pcs

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-11*