--- product_id: 529624475 title: "Express Water Reverse Osmosis Water Filter System, Chlorine Reduction, NSF Certified" brand: "express water" price: "฿28238" currency: THB in_stock: true reviews_count: 3 category: "Express Water" url: https://www.desertcart.co.th/products/529624475-express-water-reverse-osmosis-water-filter-system-chlorine-reduction-nsf store_origin: TH region: Thailand --- # 99.99% impurity removal DIY quick connect install 10-stage filtration tech Express Water Reverse Osmosis Water Filter System, Chlorine Reduction, NSF Certified **Brand:** express water **Price:** ฿28238 **Availability:** ✅ In Stock ## Summary > 💦 Elevate your hydration game with pure, mineral-rich water at your fingertips! ## Quick Answers - **What is this?** Express Water Reverse Osmosis Water Filter System, Chlorine Reduction, NSF Certified by express water - **How much does it cost?** ฿28238 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/529624475-express-water-reverse-osmosis-water-filter-system-chlorine-reduction-nsf) ## Best For - express water enthusiasts ## Why This Product - Trusted express water brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Leak Protection:** Emergency leak detector automatically shuts off water flow to protect your home. - • **Customizable & Future-Ready:** Expandable system supports UV & deionization filters to tailor your water quality. - • **Effortless Under-Sink Setup:** Tool-free quick connect design means no plumber needed—get pure water fast. - • **Pure Hydration, Zero Compromise:** Filters out 99.99% of lead, chlorine, fluoride & more for crystal-clear water. - • **Mineral Boost for Millennial Wellness:** Alkaline filter enriches water with calcium, potassium & magnesium for balanced hydration. ## Overview The Express Water Reverse Osmosis Water Filter System delivers NSF-certified, 10-stage filtration that removes up to 99.99% of contaminants including lead, chlorine, and fluoride. Its alkaline filter adds essential minerals for enhanced taste and health benefits. Designed for easy under-sink installation with quick connect fittings, it features a leak detection system and customizable upgrades like UV filtration. Ideal for homes and offices seeking premium, clean, mineralized water without professional installation hassle. ## Description Make the purest alkaline mineral water with your own home alkaline water system. Great in the kitchen: Improve the taste of your cooking, coffee, ice, and drinks. Experience true Reverse Osmosis purification. Safe filtered fresh tasting H2O: Filters up to 99.99% of impurities including Lead, Chlorine, Fluoride, Cyanide, Radium, Asbestos, Calcite, Heavy Metal, Pharmaceuticals, and other major impurities. Get setup fast with our Quick Connect tubing system. Long lasting filters of the highest capacity standards mean you only need to change your filters every six months. Includes fast flow faucet with 0.8 GPM delivery. A compact system made to fit under a sink in a cabinet. Best for house, apartment, residential, well water, industrial, rv, machine, and office uses. Certified by an independent laboratory to NSF standard 58. Comes with 4 gallon (3.2 gallon water capacity) storage tank and tank stand. Your tank can sit upright or on it’s side. Includes all filters needed for setup and first 6 months of use. Can be wall / cabinet mounted or freestanding, made for indoor use. Can be installed undersink, in a basement, or other remote locations, you may need additional tubing or a delivery pump depending on how far away you plan to install or if you plan to link to a refrigerator as well. For every one gallon of water produced the system discharges between one and three gallons (depending on the pressure and quality of your incoming water). The system is compatible with 3/8" and 1/2" under sink connections. Includes filter housing wrench. Operates on 40-80 PSI water pressure, you may need a Booster Pump or Pressure Regulator depending on your water pressure. Make your water cleaner and more convenient than any pitcher, faucet filter, or countertop systems. Express Water’s 10 Stage Reverse Osmosis Water Alkaline Filtration System ROALK10M is the complete solution for your drinking water. Review: Great water - This is my second system. When I moved it was a priority to install an excellent filter. We can't control all the bad nutrition around us but we can have good water. I had no problem installing it. Some think a retired woman would have trouble installing a system like this but I did it fine, a little slower than some but it's done and working great. Review: Easy install - I installed myself. Easy to follow directions. It makes our water taste good and filters out all the chemical additives. ## Features - Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system filtering up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Arsenic, and more. Alkaline Water Filter: Express Water’s Alkaline Water Filter with Active Mineral Technology adds Calcium, Potassium, Magnesium, and other minerals to your water - Under Sink Water Filter: Don’t waste money on professional installation. Express Water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system. No need to mess with refilling or activating your water filter, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water - On Demand Support: Support from experts who can answer any of your questions about your new water filter - Quality Guaranteed: Rest easy with our 1-year on all Express Water Reverse Osmosis Water Systems Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture - Customizable RO Water Filter System: Express Water home water filtration systems are fully upgradable and customizable with quick connecting fittings. Try additional filtration attachments including UV Water Filter, Deionization Water Filter, and more ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C4MGDF1Y | | Best Sellers Rank | #373,960 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #828 in Under-Sink & Countertop Filtration | | Brand | EXPRESS WATER | | Date First Available | August 18, 2014 | | EU Spare Part Availability Duration | 1 Years | | Installation Type | Under Sink | | Item Weight | 30.2 pounds | | Item model number | ROALK*** | | Manufacturer | Express Water | | Maximum Flow Rate | 0.8 Gallons Per Minute | | Model Name | ROALK5D | | Package Information | Tank | | Power Source | Manual Operation | | Product Dimensions | 15"L x 5"W x 17"H | | Special Feature | Chlorine Reduction, NSF certified | | Supported Water TDS Level Maximum (PPM) | 600 | | UPC | 810052530796 | ## Product Details - **Brand:** EXPRESS WATER - **Capacity:** 4 Gallons - **Included Components:** System, Filters, Tank, Faucet, Parts - **Installation Type:** Under Sink - **Material:** Plastic - **Package Information:** Tank - **Power Source:** Manual Operation - **Product Dimensions:** 15"L x 5"W x 17"H - **Purification Method:** Reverse Osmosis - **Special Feature:** Chlorine Reduction, NSF certified ## Images ![Express Water Reverse Osmosis Water Filter System, Chlorine Reduction, NSF Certified - Image 1](https://m.media-amazon.com/images/I/81zTVzrdWhL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Questions & Answers **Q: How often do I need to replace the filters in this unit?** A: Each filter has a rated life and you'll have to calculate how much you're using to figure out. A good rule of thumb is to replace the sediment filter the most often (as it starts looking dirty, prob 1-6mos). Change the carbon filters on a schedule because chlorine is the most dangerous thing to let through to the membrane (usually 6-12mos). Chlorine will quickly damage the membrane(most expensive to replace, usually 1-2yrs). Letting hot water run through the system opens the pores on the membrane and let's contaminants through. Also, when you change carbon filters, let them flush to the drain before connecting output to membrane (will keep carbon dust from settling in the membrane pores). The easiest way to check if you need to replace the membrane is with an inexpensive ppm/tds meter, you should be in the 0-50ppm range, depending on your starting ppms of the tap (collect sample before it reaches the mineralizer to test). Once ppms start creeping up, you need to change your membrane. You will need a ph tester to determine if the mineralizer is exhausted. Each filter really has it's own rate it wears out. I've worked with reef tanks and hydroponics most of my life so I help these tips help. **Q: How much water is being wasted while filtering?** A: As I did my research this one i found was about 1 to 1 so if I remeber correctly, please dont quote this but I did by this one becuase it wasted the least amount of water per gallon i looked at. I have had it now for almost two years and still on the same filters and i use it for everything i can **Q: What’s the difference between this one at 100 and the one at 50 they are ten bucks difference? Thanks** A: The productivity rate is the difference, 100 GPD is a bit faster. **Q: How do I know when to change filter?** A: 6 month to a year it depends how many people use the filter during the day most people will change it every year ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great water *by C***S on July 25, 2024* This is my second system. When I moved it was a priority to install an excellent filter. We can't control all the bad nutrition around us but we can have good water. I had no problem installing it. Some think a retired woman would have trouble installing a system like this but I did it fine, a little slower than some but it's done and working great. ### ⭐⭐⭐⭐⭐ Easy install *by D***A on July 10, 2025* I installed myself. Easy to follow directions. It makes our water taste good and filters out all the chemical additives. ### ⭐⭐⭐⭐⭐ Review *by A***O on June 15, 2024* ## Frequently Bought Together - Express Water Reverse Osmosis Water Filter System, Chlorine Reduction, NSF Certified - Express Water – 3 Year Reverse Osmosis System Replacement Filter Set – 23 Water Filters with 50 GPD RO Membrane, Carbon GAC, ACB, PAC Filters, Sediment SED Filters – 10 inch Size - Express Water – 2 Pack Alkaline Water Filter Replacement – Mineral, Antioxidant, pH+ – 10 Inch – Under Sink and Reverse Osmosis System --- ## 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.co.th/products/529624475-express-water-reverse-osmosis-water-filter-system-chlorine-reduction-nsf](https://www.desertcart.co.th/products/529624475-express-water-reverse-osmosis-water-filter-system-chlorine-reduction-nsf) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*