

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.
💧 Drink Smart, Live Pure — The Future of Water is Flowing Fast!
The FS-TFC 5-Stage Reverse Osmosis System delivers up to 100 gallons per day of ultra-purified water by removing over 99.999% of harmful contaminants. Designed for fast flow and compact installation, it fits seamlessly under sinks in homes, offices, and RVs. With easy DIY setup, low water waste, and economical filter replacements, it offers a robust, eco-friendly solution for clean, great-tasting water that outperforms bottled alternatives.














| ASIN | B07F71QR5L |
| Best Sellers Rank | #64,811 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #115 in Under-Sink & Countertop Filtration |
| Brand Name | FS-TFC |
| Capacity | 100 Gallons |
| Container Type | Bottle |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,689) |
| Included Components | RO System, Faucet, Tank, Feedwater Adapter, Extra Tool and Filter Set |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 11.5"L x 5"W x 11.5"H |
| Item Weight | 13 Pounds |
| Manufacturer | FS-TFC Water System |
| Material Type | Plastic, Stainless Steel |
| Maximum Flow Rate | 18 Liters Per Hour |
| Model Name | FS-RO-100G-A |
| Model Number | FS-RO-100G-A |
| Operating Pressure Range | 30-85 PSI |
| Other Special Features of the Product | Reduce TDS |
| Power Source | Ac |
| Purification Method | Reverse Osmosis |
| Supported Water TDS Level Maximum (PPM) | 500 |
| Unit Count | 1.00 Count |
| Warranty Description | 2 Years |
A**R
very robust yet economical system for your drinking water purification needs.
Ive purchased this unit multiple times times now for each home I have purchased or worked on. When I test unfiltered tap water using a pen sized TDS ppm sensor (Total Dissolved Solids parts permillion) City water is anywhere from 70-150 or more and typically tastes strongly like chlorine or fluoride or even sulpher and in the Vegas area it even came out brown. That's why bottled water is so popular, but its labor intensice to buy cases of water and carrythem home then have to dispose of the plastic after. Using this filter setup the TDS reading taken in multiple areas never exceeded TEN (10 ppm) and has zero taste. Aftee you start drinking clean clear water for about 2 weeks you taste will start to come back and if you go back to regular tap water you will notice just how horrible the chlorine and sulfur tasting city water really is. After installing either 4 or 6 water filter systems of this exact model over the last 8 years I can confirm it doesnt leak, tastes great and new filters clear the water down to 2-7 ppm. Even after several years amd hunddeds of gallons of water filtered without chamgingnthe filters the water still tests about a max of 10-15 ppm and has no odors or bad taste. RO water like this is even cleared for use in CPAP machines that recommend distilled water use on the humidifiers. Several years of RO water in my Phillips Dream Station has had zero negative effects. The health benefits of clean water are clearly docume ted and this is a very robust yet economical system for your drinking water purification needs.
T**K
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.
R**N
Great Reverse Osmosis
We purchased this unit, wondering if it was going to give us better water. We have a well and a water softener and my wife didn't love the taste of the water and I didn't like to use the water softener for working with plants. Our configuration was to just run the RO to the refrigerator so we didn't use the faucet. The start of this story was not super, but after the outstanding customer support I was able to install and had great tasting water. It did the job we were looking for it to do. 5 start rating for unit and customer service. More details: What I loved about this unit is that it had literally everything I needed to put it in. I have to say, this is the first time I've used the quick connect and it was intimidating and worrisome. But after using it and learning that you just have to push the outside ring inwards to get the pipe out and the little blue c rings keep that ring out, thus not allowing the plastic pipe to come out unwanted, I was relived. And they are so easy to work with, it is almost embarrasingly easy! The seller ships the unit with a pretty much plug and play manner, but also includes extras like water line, multiple quick connect adapters, the valve you can use and the sink faucet. Even Teflon tape. As with most instructions, reading them made the installation easier. Even the diagram on the instructions to take off the pipe would have saved me watching youtube videos on the topic. To install, you basically have to connect 4 lines to/from the unit. IN, OUT, DRAIN and TANK. I installed it in phases by connecting a 1/4" plastic pipe to the quick connect, into a 1gal water container. * starting at the line going into the pressure regulator - making sure water was coming from the line * out of the regulator * out of the unit * final configuration before connecting it to my refrigerator Bottom line is this worked great and I am very pleased. One thing to remember with the RO systems. The water goes through a bunch of filtration and then goes through a membrane, and the pressure is controlled by a pressure valve. Therefore, if you run the water directly through the RO, the water doesn't run fast. it took about 7 minutes to fill 12 cups of water when I first connected it up. About 30 minutes later, the 12 cups took less than a minute....more... Once the system is in its final state and if you leave it be for 15 minutes or so, the water comes out of the faucet (in my case refrigerator) like you'd expect. This is caused by that water tank that comes with the unit.
L**M
Impossible to locate replacement RO membranes.
I purchased this system in 2022. It feeds a faucet on my countertop and, refrigerator faucet and ice maker. It has served me well, but now I need a replacement RO membrane. The manufacturer is impossible to contact and among the many membranes on Amazon, not one will fit the filter housing on this unit. If you are looking for a long-lasting unit, I have to recommend you skip this one. Lloyd Update: I am going to modify my system to accept a larger RO membrane and housing. I have also discovered that the other filters in the system are not available on Amazon or from the manufacturer. Once the filters need replacing, you will have to replace the entire unit. Lloyd
Z**H
I got tired of drinking bottled spring water which I doubted the source! So, I invested in one of these filters knowing that it has been filtered in my very own home. The water comes out fresh, crisp and clean! I did the 6-month filter change and let me tell you the number of substances that are filtered is amazing! In the first picture you can see the new filter compared to the old filter. I poured the water into the cup to get a better look at it. By the time the water goes through the remaining 4 stages and reaches the tap, the water is crystal clear and fresh. I highly recommend it if you are looking to improve your water quality and remove harmful contaminants.
J**N
prefect
J**Y
I had a problem with one of the plumbing fittings not being compatible with our thread fittings initially. The company was very prompt & good with their response . I purchased the fitting that would work for us & they reimbursed me for all the costs I incurred . I would highly recommend this company to all. I needed the RO unit as we have very hard water & need to reduce the mineral content for our humidifier. Works like magic! VERY HAPPY
Trustpilot
1 month ago
1 month ago