--- product_id: 28172221 title: "LiquaGen 4 Stage Reverse Osmosis and Deionization (RO/DI) Portable Space Saver Water Purification System | Water Filtration System for Aquarium Filter Processes + Manual Flush Valve (100 GPD)" brand: "liquagen" price: "6919086₫" currency: VND in_stock: true reviews_count: 5 category: "Liqua Gen" url: https://www.desertcart.vn/products/28172221-liquagen-4-stage-reverse-osmosis-and-deionization-ro-di-portable store_origin: VN region: Vietnam --- # 100 GPD high flow rate 4-stage filtration with 0 TDS promise Manual flush valve for easy maintenance LiquaGen 4 Stage Reverse Osmosis and Deionization (RO/DI) Portable Space Saver Water Purification System | Water Filtration System for Aquarium Filter Processes + Manual Flush Valve (100 GPD) **Brand:** liquagen **Price:** 6919086₫ **Availability:** ✅ In Stock ## Summary > 💧 Purify like a pro — zero impurities, zero compromises! ## Quick Answers - **What is this?** LiquaGen 4 Stage Reverse Osmosis and Deionization (RO/DI) Portable Space Saver Water Purification System | Water Filtration System for Aquarium Filter Processes + Manual Flush Valve (100 GPD) by liquagen - **How much does it cost?** 6919086₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/28172221-liquagen-4-stage-reverse-osmosis-and-deionization-ro-di-portable) ## 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 - • **Built to Last:** Air-leak tested, leak-free fittings and durable filters ensure long-term reliability. - • **Effortless Upkeep:** Manual flush valve lets you maintain peak performance without hassle or downtime. - • **Compact Powerhouse:** Space-saving design fits effortlessly in any setup, perfect for modern minimalists. - • **Plug & Play Convenience:** Installation-free, portable system ready to elevate your aquarium water quality instantly. - • **Crystal Clear Water Guarantee:** Advanced 4-stage filtration delivers zero ppm water, ideal for sensitive aquatic life. ## Overview The LiquaGen 4 Stage RO/DI Portable Water Purification System offers a compact, installation-free solution delivering 100 gallons per day of ultra-pure, zero TDS water. Featuring a 4-stage filtration process—including sediment, carbon, RO membrane, and DI resin—this system is optimized for aquarium enthusiasts seeking pristine water for fish, coral, and plants. Its manual flush valve simplifies maintenance, while durable, leak-free fittings ensure long-lasting performance. ## Description The LiquaGen 4 Stage RO/DI system is an ideal choice for those looking to step into the world of RO/DI filtration. With its portable design and lightweight construction, it offers easy mobility and convenience for producing your initial batch of high-quality RO/DI water. This system is specifically recommended for customers with small freshwater or saltwater aquariums, as it eliminates the need to transport large volumes of water and saves you time and effort by enabling you to create your own 0 Total Dissolved Solids (TDS) water. Review: Works like a champ and saves me a lot of money! - So I fill up 5 gallon jugs very regularly at $1.50 a pop. I probably go through 15 of those in a month. I have to drive to the fill stations on top of paying for the fill-ups. This water filter will pay for itself within 6 months and really makes it convenient to fill my bottles. When I first hooked the filter up to my water supply, there were a couple of leaks but I took 2 min to tighten things down and now there are no leaks. I have tested the water and untreated, the water is close to 300 ppm of turbidity in the Dallas area, treated with this filter it is 0 ppm. I drink it with no problem and it keeps my coffee machines from getting clogged with grit. I also use it for fish with no issues. Highly recommend this filter system. Review: 4.5 Stars. Was not air tested. - First of all. Once it works, it's awesome. Does exactly what it says. RO'es some water down to 0 TDS. It's fairly compact, and does 50 gallons per day as stated. Got mine all set up in about 45 minutes in my basement off of the faucet. It connects like a regular hose would. You might need a Y connector if you plan on using the faucet or running water somewhere else. I was lucky and had a leftover one from outside. Will need to get another next year. The reason why I didn't give it 5 stars is because they say that it's air tested before they ship so that it won't leak when you hook up the water. Well mine definitely wasn't. I would understand if one of the connectors or tubes came undone, and just slide it back in place, but that wasn't the case. The entire 3rd filter tube's top was not fully rotated. Leaked TONS of water right away. So I had to take quite a few of the hoses undone to get the wrench tightener thing(that it came with) to tighten it all the way. There is no way that could have happened during shipping, the tubes would have turned or something. Anyways, great filter! For anyone using this for a fish tank. My water starts with a pH of about 7.8, after RO went down to 7.0. Starting TDS 125 down to 1 or zero. Will definitely help if your tap water has a high PH or too many dissolved solids. Quick reminder that not everyone needs to drink water with 0 dissolved solids. It's often healthy to drink water with minerals in it. Drinking this water will taste bland/kinda gross. I would only use this for drinking water if you have some other chemicals that are harmful to you in the tap water. ## Features - The LiquaGen 4 Stage Space Saver is an installation-free portable water filter system perfect for customers who are buying an RODI system for the first time and need to eliminate small impurities like chlorine found in city water. This machine requires little to no space! Ideal for Aquarium Water Treatments like Fish Tank's, Reef Tanks, Salt Water and Fresh Water Aquariums by the process of deionization ensuring zero ppm water, optimal for fish, coral, & other aquatic life & plants. - SPECIFICATIONS:- Air-leak tested, leak-free fittings and long lasting filters ensure durability and mitigate chances for damage and breakage. Filtration Stages: 1st Stage: Inline Sediment Filter, 2nd Stage: Inline Carbon Filter, 3rd Stage: RO Membrane, 4th Stage: Inline DI Resin Cartridge. Garden/Laundary Hose Adapter is included with all necessary tubing & connections. - 0 TDS PROMISE: Highest Caliber Nuclear Grade Deionization Media providing optimal performance for the membrane. The higher the rejection rate of the membrane the longer the DI will last. Essentially the DI is polishing off the remaining TDS of the membrane and therefore fewer TDS out of the membrane making the DI last longer and perform better certifying 0 TDS water. - PREMIER MEDIA:- Our Activated Charcoal Carbon Media provides an exceptional cost-to-performance value. With high chlorine reduction, great dirt-holding capacity, and greatly reduced carbon fines, you will soon make LiquaGen filters the only filters you will ever need. Our Polypropylene Sediment Aquarium Filters come with a 3-layer honeycomb gradient design making it 3x more efficient than any non-gradient filter, removing dirt, rust, dust, chemical resistance and sand particles. - MANUAL FLUSH VALVE - Allows for easy and efficient maintenance. By manually flushing the system, you can remove any accumulated debris, contaminants, or scaling, ensuring optimal performance and prolonging the lifespan of the filtration components ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00LKF2QHE | | Best Sellers Rank | #508,973 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #950 in Under-Sink & Countertop Filtration | | Brand | LiquaGen | | Date First Available | September 9, 2014 | | Installation Type | Portable/Countertop | | Is Discontinued By Manufacturer | No | | Item Weight | 4 pounds | | Item model number | 0703610776449 | | Manufacturer | LiquaGen Water Technology | | Model Name | 4-SS | | Package Information | Cartridge | | Power Source | Adapter | | Product Dimensions | 8"L x 6"W x 13"H | | Special Feature | Lightweight, Portable, Tankless, Zero TDS | | UPC | 703610776449 | | Upper Temperature Rating | 25 Degrees Celsius | ## Product Details - **Brand:** LiquaGen - **Capacity:** 100 Gallons - **Included Components:** RODI Filter system and Garden Hose Adapter - **Installation Type:** Portable/Countertop - **Material:** 100 GPD - **Package Information:** Cartridge - **Power Source:** Adapter - **Product Dimensions:** 8"L x 6"W x 13"H - **Purification Method:** Reverse Osmosis - **Special Feature:** Lightweight, Portable, Tankless, Zero TDS ## Images ![LiquaGen 4 Stage Reverse Osmosis and Deionization (RO/DI) Portable Space Saver Water Purification System | Water Filtration System for Aquarium Filter Processes + Manual Flush Valve (100 GPD) - Image 1](https://m.media-amazon.com/images/I/91q9M5ldPaL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works like a champ and saves me a lot of money! *by S***N on April 19, 2020* So I fill up 5 gallon jugs very regularly at $1.50 a pop. I probably go through 15 of those in a month. I have to drive to the fill stations on top of paying for the fill-ups. This water filter will pay for itself within 6 months and really makes it convenient to fill my bottles. When I first hooked the filter up to my water supply, there were a couple of leaks but I took 2 min to tighten things down and now there are no leaks. I have tested the water and untreated, the water is close to 300 ppm of turbidity in the Dallas area, treated with this filter it is 0 ppm. I drink it with no problem and it keeps my coffee machines from getting clogged with grit. I also use it for fish with no issues. Highly recommend this filter system. ### ⭐⭐⭐⭐ 4.5 Stars. Was not air tested. *by C***S on November 20, 2018* First of all. Once it works, it's awesome. Does exactly what it says. RO'es some water down to 0 TDS. It's fairly compact, and does 50 gallons per day as stated. Got mine all set up in about 45 minutes in my basement off of the faucet. It connects like a regular hose would. You might need a Y connector if you plan on using the faucet or running water somewhere else. I was lucky and had a leftover one from outside. Will need to get another next year. The reason why I didn't give it 5 stars is because they say that it's air tested before they ship so that it won't leak when you hook up the water. Well mine definitely wasn't. I would understand if one of the connectors or tubes came undone, and just slide it back in place, but that wasn't the case. The entire 3rd filter tube's top was not fully rotated. Leaked TONS of water right away. So I had to take quite a few of the hoses undone to get the wrench tightener thing(that it came with) to tighten it all the way. There is no way that could have happened during shipping, the tubes would have turned or something. Anyways, great filter! For anyone using this for a fish tank. My water starts with a pH of about 7.8, after RO went down to 7.0. Starting TDS 125 down to 1 or zero. Will definitely help if your tap water has a high PH or too many dissolved solids. Quick reminder that not everyone needs to drink water with 0 dissolved solids. It's often healthy to drink water with minerals in it. Drinking this water will taste bland/kinda gross. I would only use this for drinking water if you have some other chemicals that are harmful to you in the tap water. ### ⭐⭐⭐⭐⭐ Great CS! *by G***R on June 11, 2018* Product works great, no issues except attaching it to my faucet, but that was due to my faucet being cheap plastic. What really impressed me was their CS. My product did not come on time and whenever I tracked the package, it showed as "delayed" and would give a new delivery date. Finally, after 2 weeks of this I called all ready to chew some butt, but before I could get a good head of steam going the CS rep saw that it was lost in shipping and would send a new one through priority mail and upgrade it from the 75 to the 150 gpd. This was late on a Friday night and he said he would get it going and email me the new tracking # tonight. I did not get the tracking # so I called again on Monday morning. Talked to the same guy and he apologized because it was too late that night to get the order out so to make up for THAT, he threw in a free set of replacement canisters. A bit of a rough time, but they did right by me in the end. I could tell by the way they handled themselves that they are committed to making happy customers. Overall I'm impressed with the company, as for the product, it does the job as intended, can't really complain. ## Frequently Bought Together - LiquaGen 4 Stage Reverse Osmosis and Deionization (RO/DI) Portable Space Saver Water Purification System | Water Filtration System for Aquarium Filter Processes + Manual Flush Valve (100 GPD) - HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy,Blue & White - AquaticLife Float Valve Kit for RO & RO/DI Systems --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/28172221-liquagen-4-stage-reverse-osmosis-and-deionization-ro-di-portable](https://www.desertcart.vn/products/28172221-liquagen-4-stage-reverse-osmosis-and-deionization-ro-di-portable) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-19*