Express Water
The high-end Model 6 Tankless RO System from offers a powerful 600 gallons of water per day filtration process complete with remineralization. You can enjoy the convenience of a continuous supply of clean, crisp, and healthy water straight from your tap. The system's remineralization feature helps provide an improved taste and feel, leaving you with water that's pure and refreshing.
Alkaline Water Filter: Express Water's Alkaline Water Filter, featuring Active Mineral Technology, enriches your water by infusing it with essential minerals like Calcium, Magnesium, and more.
Effortless Efficiency: Enjoy a rapid 0.4GPM water flow with our 600GPD RO water filter system, ensuring you have clean, refreshing water on demand, without the wait.
Sustainable Solution: Experience a remarkable 2:1 pure to drain ratio, significantly reducing water wastage compared to a traditional reverse osmosis water filtration system. Save money and the planet simultaneously!
Space-Saving Marvel: Our reverse osmosis system tankless design is the ultimate space-saver, freeing up valuable kitchen space while providing top-tier water purification.
Quick & Hassle-Free Maintenance: Say goodbye to complicated filter changes. With our innovative 2-second quick-twist tankless RO system, filter replacements are a breeze, keeping your water consistently pure.
Stay Informed: Stay on top of your water quality effortlessly with built-in filter life and water quality indicators. Never guess when it's time for a filter change and enjoy peace of mind about your water's purity.
Built-in leak detection safeguards against accidents.
Introducing the Express Water Tankless Reverse Osmosis System, a top-tier water purification solution. Crafted with premium materials, this system ensures the purest, best-tasting water flows into your home with its innovative 6-stage filtration.
Overall rating: 3.2962964 / 5 from 27 reviews.
The Model 6 Tankless RO System offers a powerful 600 gallons per day filtration process with remineralization, providing clean and refreshing water. Customers appreciate its efficient water flow, space-saving design, and ease of maintenance. The system's performance and installation are highly praised, though some have mixed opinions about the filters.
Review topics: ["quality","customer service","water","buy","filters","system","drawback","taste","space","unit"].
"My neighbor introduced me to express water that they loved it. He convinced me to get it. Let me tell yall about it that his convincing and me going for it was ans is truely worth it. Water taste very good and I regret by not getting it sooner."
"Been following the reviews (Nov 2025) and setup and alert or replacement filters. Based on the fact the "Notify me via email" button is still active, stock has not replenished. Do not buy the system as you will be stuck with a brick that you wan't use for months or who knows how long. The initial cost of the filtration system was worth the investment as I was spending more than 50/month on buying water and this system paid itself off in 6 months. But here I am a year later and can't place an order for replacement filters."
"I bought this system about 18 months ago and since day one there has been NO replacement for the filters. They are always out of stock. The company will no provide a solution to this problem, not even an alternative to buy on Amazon. My system has now locked itself and will not even work because filters need replacing."
"I've had my system for a year and I guess its my turn to join the "no replacement filter" club. I don't understand how the filters are always out of stock, but if I choose to buy an entire new system, it miraculously comes with the filters???? Why not stop offering the entire system and let the customers who have already given you their money purchase the filters they need?"
"From 5 stars to 1 star just like that! I went through a lot of effort to install this system and I was so happy with it! But then I can't get a replacement filter for months with no end in sight. At what point will you offer a complete replacement system? This looks like it have been going on for too long! What is Express going to do to make this right? Does another supplier make a replacement?"
"Just plan on your whole filtration system to last you only a year because the replacement filters will not be available to you 12 months later when you need them. I have been in need of a replacement filter for months and they continue to be unavailable. I’m starting to wonder if I wasted several hundred dollars on an entire RO system."
"Pump is already loud. Sediment filters are rarely in stock. Filter beeps loudly with no way to disable it until you replace the filter that you can't get. Mandatory audible feedback is ridiculous. Buy something that lets you choose whether or not you hear it."
"Don't buy this product. Replacement filters are unavailable."
"I don’t know why this filter system is even in the market when replacement filters are not in stock ever. I had purchased the system a year back and my first stage filter is already replaced. Pre emptively I am trying to find second stage filter and not able to find it. Really frustrating"
"Filters have been out of stock for a year! This is a one time use filtration system basically. This company is a joke"
