--- 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: "€ 292.40" currency: EUR in_stock: true reviews_count: 8 category: "Liqua Gen" url: https://www.desertcart.gr/products/28172221-liquagen-4-stage-reverse-osmosis-and-deionization-ro-di-portable store_origin: GR region: Greece --- # 100 GPD filtration capacity 4-stage purification process 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:** € 292.40 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your aquarium game with zero-compromise water purity! ## 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?** € 292.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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 - • **Pure Perfection:** Delivers 0 TDS water with advanced 4-stage RO/DI filtration for pristine aquarium health. - • **Compact Powerhouse:** Space-saving design fits effortlessly on any countertop or small space. - • **Trusted Durability:** Air-leak tested fittings and premium media ensure leak-free, long-lasting filtration reliability. - • **Portable & Versatile:** Lightweight and tankless—perfect for freshwater, saltwater, and reef tanks anywhere you need. - • **Effortless Maintenance:** Manual flush valve lets you clear debris quickly, extending filter life and performance. ## Overview The LiquaGen 4 Stage RO/DI Portable Water Purification System offers a compact, installation-free solution delivering up to 100 gallons per day of zero TDS water. Featuring a robust 4-stage filtration process—including sediment, carbon, RO membrane, and DI resin—this lightweight, tankless system is optimized for aquarium enthusiasts seeking pristine water quality. Its manual flush valve simplifies maintenance, while durable, leak-tested fittings ensure reliable, long-term performance. Ideal for both freshwater and saltwater tanks, LiquaGen empowers you to produce premium water on demand, saving space and eliminating impurities for healthier aquatic life. ## 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: Great Product and customer service - ****One warning. Check your water pressure at home (device is about 5 bucks). If it's 40 or below you will need to request a low pressure membrane. I had to resolve this through the company after the fact because there is no way of knowing in the desertcart description. The good news is that you don't have to buy the highest pressure model (150gph) since the low pressure membrane is only about 75gpd anyways. So if you're pressure is lower purchase the cheapest 75gpd unit and ask for low pressure membrane. I've been using this for maybe 6 months and it works very, very well. This is for fish tank purposes. The water measures zero nitrates. The price is awesome compared to similar units out there. I've been trying to measure the ratio and it does seem about 4-5 waste to 1 clean water. This device is versatile. You can take outside in the summer and work off outdoor hose connection if you choose. It can also be connected to inside faucet (as long as it's screw in diffuser). I had to buy an adaptor from home depot to make mine work but it's worth it. The best part about the purchase is that the company answers the phone (owner I think) and he took care of any issues immediately with no hassle whatsoever. I rate this company as top notch seller and would not hesitate to purchase from them again. Review: Excellent for my use which is to create RO water to top off my fish tanks and for humidifiers. - Eight months in and still producing excellent RO water. I use a TDS meter to test. I've been using it to top off my fish tanks and to create RO water for my humidifiers. I have excellent water pressure, but it does take a while to fill the 7-Gallon and 2.5 Gallon containers I keep on hand. I've only been using it about every one or two weeks to fill up the containers. ## 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 | #861,085 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,397 in Under-Sink & Countertop Filtration | | Brand | LiquaGen | | Brand Name | LiquaGen | | Capacity | 100 gallons | | Container Type | Cartridge | | Customer Reviews | 4.0 out of 5 stars 27 Reviews | | Included Components | RODI Filter system and Garden Hose Adapter | | Installation Type | Countertop | | Item Dimensions L x W x H | 8"L x 6"W x 13"H | | Item Weight | 4 pounds | | Manufacturer | LiquaGen Water Technology | | Material | 100 GPD | | Material Type | 100 GPD | | Model Name | 4-SS | | Model Number | 0703610776449 | | Number of Items | 1 | | Other Special Features of the Product | Lightweight, Portable, Tankless, Zero TDS | | Part Number | 4SS | | Power Source | Adapter | | Product Dimensions | 8"L x 6"W x 13"H | | Purification Method | Reverse Osmosis | | Special Feature | Lightweight, Portable, Tankless, Zero TDS | | UPC | 703610776449 | | Upper Temperature Rating | 25 °C | ## 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) ![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 2](https://m.media-amazon.com/images/I/816fyTGCPHL.jpg) ![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 3](https://m.media-amazon.com/images/I/81kH3sOn+-L.jpg) ![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 4](https://m.media-amazon.com/images/I/91KpQrJntqL.jpg) ![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 5](https://m.media-amazon.com/images/I/710v8PBMmqL.jpg) ## Available Options This product comes in different **Material Type** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product and customer service *by R***H on June 13, 2017* ****One warning. Check your water pressure at home (device is about 5 bucks). If it's 40 or below you will need to request a low pressure membrane. I had to resolve this through the company after the fact because there is no way of knowing in the amazon description. The good news is that you don't have to buy the highest pressure model (150gph) since the low pressure membrane is only about 75gpd anyways. So if you're pressure is lower purchase the cheapest 75gpd unit and ask for low pressure membrane. I've been using this for maybe 6 months and it works very, very well. This is for fish tank purposes. The water measures zero nitrates. The price is awesome compared to similar units out there. I've been trying to measure the ratio and it does seem about 4-5 waste to 1 clean water. This device is versatile. You can take outside in the summer and work off outdoor hose connection if you choose. It can also be connected to inside faucet (as long as it's screw in diffuser). I had to buy an adaptor from home depot to make mine work but it's worth it. The best part about the purchase is that the company answers the phone (owner I think) and he took care of any issues immediately with no hassle whatsoever. I rate this company as top notch seller and would not hesitate to purchase from them again. ### ⭐⭐⭐⭐ Excellent for my use which is to create RO water to top off my fish tanks and for humidifiers. *by G***S on May 6, 2025* Eight months in and still producing excellent RO water. I use a TDS meter to test. I've been using it to top off my fish tanks and to create RO water for my humidifiers. I have excellent water pressure, but it does take a while to fill the 7-Gallon and 2.5 Gallon containers I keep on hand. I've only been using it about every one or two weeks to fill up the containers. ### ⭐⭐⭐⭐⭐ Perfect *by W***Y on October 31, 2018* Very good product in all respects. Gast delivery. Very giod performance. Well packaged, documented, productions, parts oackage and customer service including quality control is above average. I would and will recommend to everyone- if only all transactions were so smooth- lastly this is completely unsolicited praise so you can buy with comfidence ## 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.gr/products/28172221-liquagen-4-stage-reverse-osmosis-and-deionization-ro-di-portable](https://www.desertcart.gr/products/28172221-liquagen-4-stage-reverse-osmosis-and-deionization-ro-di-portable) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-19*