10 Best Reverse Osmosis Countertop Water Filtration System of December 2025

• Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system removing up to 99. 99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, Bacteria, and more
• UV Water Purification System: Powerful UV Sterilization eliminates microorganisms like coliform, E. Coli, viruses, bacteria, microorganisms, and more from your drinking water
• Alkaline Water Filter: Alkaline Filtration System with Active Mineral Technology adds Calcium, Potassium, Magnesium, and other minerals to your body needs right in 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
• Quality : Rest easy with our 1-year on all Express Water Reverse Osmosis Water Systems
• Under Sink Water Filter System: No need to mess with refilling or activating your Alkaline UV water filter system, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water
• Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture
• On Demand Support: Support from experts who can answer any of your questions about your new water filter
• Included Components: Ultraviolet Sterilizer Uv Bulb 4 Gallon Water Storage Tank Tank Valve & More

EXPRESS WATER

• PUREST TASTING REVERSE OSMOSIS WATER: Zero Installation Purifier transforms ordinary tap water into clean, healthy and delicious drinking water. Choose AlcaPure Edition for Alkaline water, 7-8 pH, or OnliPure Edition for ZERO TDS water.
• MODERN AND STYLISH COUNTERTOP WATER FILTRATION SYSTEM: Beautify any kitchen with the best reverse osmosis system. Perfect for apartments, condos & RV’s.
• SPACE-SAVING DESIGN: The supply water tank is conveniently located in front of the unit, eliminating the need for top or side clearance. This allows the unit to be placed under most kitchen cabinets, saving you valuable kitchen space.
• BPA FREE. Removes up to 99% of all contaminants: Including Fluoride, Chlorine, Heavy Metals, Lead, PFOA, PFOS, & others.
• ZERO WATER WASTE: Easily accessible rejected water not suitable for drinking can be used for other purposes such as watering plants, washing produce, etc. With a 50% recovery rate, it’s the highest among ro water filter systems.

RKIN

• Enjoy unlimited ultra-fresh, clean, great tasting water right at home. Save money, time and hassle of buying costly, bottled water
• Designed, engineered and assembled in USA, RO-90 is the most durable system in the industry to guarantee water safety & your health
• Tested and certified by WQA to remove up to 99% of contaminants including arsenic, chlorine, lead, fluoride, heavy metals, virus and 1000+ contaminants
• Large super capacity filters deliver 2X contaminant removing capacity for fewer filter change outs compared to smaller all-in-one filters that clog up quickly
• Comes with 100% lead-free designer faucet, plus JG Food grade tubing to provide safe, contamination-free pure water. The original, top-notch JG Quick Connect fittings for easy and secure leak-seal
• Simple and organized, RO-90 is designed to make identifying and replacing filters intuitive and easy
• Provides you the ultimate satisfaction and peace of mind with our lifetime support and 2 year manufacturer warranty with registration

APEC WATER

• [Trusted Certification] The Waterdrop reverse osmosis system is certified against NSF 58 for TDS reduction and NSF 372 certified for lead-free material. The TDS removal rate of the RO system is certified to be up to 91.9%, and the hexavalent chromium reduction rate is certified to be up to 96.9%. The tankless reverse osmosis system is also certified by the Federal Communications Commission. Besides, it won German Red Dot Design Award 2019 and meets the EU Standards and UKCA Standards for safety.
• [Outstanding filtration performance] Tested by a third-party laboratory, through 8-stage filtration, the tankless reverse osmosis system can effectively reduce TDS, chromium, pfas, fluoride, arsenic salt, iron, radium nitrate, calcium, particles, chloride, chlorine and heavy metals like hexavalent chromium in your tap water to improve your water taste. The activated carbon block is made from natural coconut shells. Please confirm whether you are allergic to it.
• [Smart display faucet] The reverse osmosis water filtration system is built with a smart display faucet. For instance, the TDS monitor tells you the quality of your filtered water, while the filter life tracker shows how soon you need to replace your filter. So now you can enjoy an improved water-using experience and a convenient lifestyle.
• [400 GPD＆1:1 pure to drain ratio] The RO system offers faster water flow (400 gallons per day) and can filter a cup of water in about 12 seconds. Compared to traditional RO systems, the Waterdrop RO System has a low drain ratio of 1:1 and saves water waste by 300%. Save more money on your water bills!
• [Special Notice]: You must fully turn on the faucet and flush the RO system for 30 minutes after installation. The light on the faucet will flash blue during flushing, but once completed, the blue light will stop flashing. The total water capacity will be about 8. 5 gallons and the water will be undrinkable during flushing. To save water, be creative and collect the water for other purposes, such as watering plants.

Waterdrop

• 𝟓-𝐬𝐭𝐚𝐠𝐞 𝐟𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲: Enjoy delicious, clean drinking water with no fishy or acidic taste like some 0 TDS water filter pitchers have. Our multi-stage RO system with portable pitcher naturally removes TDS, sediments, metals, and other impurities. It doesn't adopt chemical principles to reduce TDS.
• 𝐍𝐨 𝐞𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐢𝐭𝐲 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐝: Don't have a plug near your sink? No problem. Our reverse osmosis water system is non-electric and has no pump. This also makes it much quieter at less than 20.7dB, lower than the sound of a laptop running.
• 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐯𝐞 𝐝𝐞𝐬𝐢𝐠𝐧: Compared to traditional RO systems, our reverse osmosis water filtration system doesn't have a built-in tank. This lets it avoid the risk of secondary pollution!
• 𝐂𝐨𝐦𝐞𝐬 𝐰𝐢𝐭𝐡 𝐚 𝐥𝐚𝐫𝐠𝐞 𝐰𝐚𝐭𝐞𝐫 𝐩𝐢𝐭𝐜𝐡𝐞𝐫: The 80 oz BPA-free Tritan plastic pitcher can be rotated 180° for multi-angle use. Large capacity pitcher makes your daily life more convenient.
• 𝐄𝐱𝐭𝐞𝐧𝐝𝐞𝐝 𝐟𝐢𝐥𝐭𝐞𝐫 𝐥𝐢𝐟𝐞: The filter used by our RO system lasts 12 months, minimizing replacement costs. It helps cut down on plastic waste, since one cartridge saves 7000 300ml water bottles.

Waterdrop

• 💧REVERSE OSMOSIS BEATS CONTAMINANTS - Tested against NSF standards. Converts your tap water/well water(TDS<500 ppm) into pure and healthy drinking water by removing 99.99% of the 1,000+ pollutants & harmful substance including viruses, bacteria, chemicals (PFOA/PFOS, Pharmaceuticals), heavy metals (Lead, Arsenicetc), chlorine, TDS (fluoride, nitrates/nitrites) and etc. Say goodbye to the hidden dangers of tap water and eliminate the need to purchase bottled water for your home.
• 💧 UV PURIFICATION SYSTEM - Use no chemicals and emits absolutely no by-products, effectively destroying 99.99% of microorganisms, bacteria, germs more thorough sterilization from your water. SimPure UV purification system combined with 3-Stages RO Filtration System, can take water purification to another level. Taste the difference!
• 💧 NO INSTALLATION REQUIRED - Plug-in and you'll have purified water right away. One full set of quick changing twist-and-seal filters come included it. Get rid of the troubles caused by complicated installation and filter replacement. Compared to traditional Under-Sink Filtration, SimPure Y7 free from water source and space constraints, you can place and move SimPure water purifier to anywhere with power supply available, perfect for kitchen, bedroom, office, lobby, Outdoor RV etc...
• 💧 HIGH EFFICIENCY IN WATER PURIFYING - 5:1 pure to drain, highest water utilization rate of the RO system on the market. Using the Recycling Multi Filtration Technology, can save your water up to 1500%. Your will get a cup of purified water in about 15 sec by the the faster Dispense flow rate (418 GPD). No more wasting money on bottled water, and you’ll be doing your part to save the planet!
• 💧SERVING USA SINCE 2006 - Seattle, WA USA, SimPure dedicated in providing world-class quality of water filtration solutions. If you are not satisfied with your purchase, then we want to hear from you. Please contact our trained water specialists. And is available to answer any questions during the life of the product. (Please scroll down for replacement filter purchase options).

SimPure

• 𝐂𝐥𝐞𝐚𝐧, 𝐩𝐮𝐫𝐞-𝐭𝐚𝐬𝐭𝐢𝐧𝐠 𝐰𝐚𝐭𝐞𝐫: Hydrate and get fresh, pure water straight from our RO filter for countertop water filtration. Its 2-filter cartridge can eliminate most harmful substances in the water, greatly improving taste. The countertop RO can achieve zero water waste, waste water can be used to water plants, wash dishes, etc. 💧Note:If L1 is displayed, it means that the TDS in the water is too high, please pour out the remaining water in water tank and add new water.
• 𝟓-𝐢𝐧-𝟏 𝐢𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐟𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐬: The countertop water filtration system can monitor your water’s condition intelligently with a smart screen displaying level of Total-Dissolved Solids (TDS), filter life indicator, volume settings, water shortage alerts, and an auto-flush mode. 💧NOTE: Do not work with well water or source water with high TDS (>500).
• 𝐄𝐜𝐨𝐧𝐨𝐦𝐢𝐜𝐚𝐥 𝐜𝐡𝐨𝐢𝐜𝐞: The countertop reverse osmosis system reduces wastage with its impressive 3:1 drain ratio and drain water recycling technology, so you won't waste much water. The water filter system countertop also enters power-saving mode when idle, reducing power consumption and saving electricity. Save water, money, and the planet!
• 𝐁𝐮𝐢𝐥𝐭 𝐟𝐨𝐫 𝐜𝐨𝐧𝐯𝐞𝐧𝐢𝐞𝐧𝐜𝐞: 1) Maintaining our countertop RO is effortless. Its 135 oz tank ensures you’d seldom need to refill it. 2) The N1 water filter system countertop enters automatic flushing mode after the first power-on. Since the filter cartridges have been activated, they can work efficiently to achieve optimal filtration performance. 3) The CF filter of the countertop water filtration system features a 6-month lifespan and the MRO filter can last up to 18 months.
• 𝐏𝐥𝐮𝐠 𝐚𝐧𝐝 𝐮𝐬𝐞: Our N1 countertop RO system is installation-free and no drilling required. All it needs is a socket and you can have pure water anywhere, from the bedroom to your office. The countertop water filtration system is an excellent choice for renters as there is no need to drill a hole on your countertop. NOTE: An electrical outlet is required to operate the RO system, and the machine wire is 70.87 inches.

Waterdrop

• Please note, this countertop RO system filters up to 0.5 - 1 gallon of water an hour; for a higher production rate, consider our undersink RO systems; the countertop RO only works with faucets that use a threaded removable aerator; not compatible with sprayer faucets
• Easy to Install Countertop Filter: Express Water’s countertop reverse osmosis systems only requires minutes to install and is designed for an easy 4-point installation that fits most standard faucet types
• Low Maintenance Water Filter: Once set-up, the reverse osmosis countertop filter requires little maintenance. Quick-connect and replaceable water filter cartridges make it easy to keep your water fresh
• 4 Stage Water Filters: Express Water 4 Stage Countertop Water Filter Systems include Sediment filter, Granular Carbon filter, Reverser Osmosis Membrane, and Post Activated Carbon filter to remove 99.99% of major contaminants in your drinking water
• Countertop RO Water Filter System: Enjoy fresh and clean drinking water from the easy install Express Water countertop water filters. On Demand Support: Support from top rated customer service team who can answer any of your questions about your Express Water countertop filtration system. Backed by 1-Year limited warranty

EXPRESS WATER

• IS YOUR WATER SAFE TO DRINK? Studies continue to pour in regarding Toxins, Hormones, Microplastics, Cancer-linked contaminants, known Carcinogens and other toxins discovered in our Tap Water, Filtered Water…and yes, even Bottled Water. Arsenic, lead, chromium, and drug residues are commonly found in municipal drinking water. AQUA TRU's patented Ultra Reverse Osmosis water filtration system is CERTIFIED to remove such contaminants and many more!
• IS YOUR WATER SAFE TO DRINK? Studies continue to pour in regarding Toxins, Hormones, Microplastics, Cancer-linked contaminants, known Carcinogens and other toxins discovered in our Tap Water, Filtered Water…and yes, even Bottled Water. Arsenic, lead, chromium, and drug residues are commonly found in municipal drinking water. AQUA TRU's patented Ultra Reverse Osmosis water filtration system is CERTIFIED to remove such contaminants and many more!
• Tested and certified by IAPMO according to NSF/ANSI standards to remove 82 CONTAMINANTS - that's 15X more contaminants than the leading pitcher filters. Removes such toxins as Lead 99.1%, Chromium 97.2%, Copper 95.2%, Fluoride 93.5%, Radium 96.4%, and Chlorine 96.6% (to name a few). In fact, it's designed to remove 1000's of pollutants that could be lurking in your tap water. Taste the Difference!
• NO PLUMBING OR INSTALLATION required - takes just minutes to set up. AquaTru’s Trusted & warrantied RO countertop system COSTS CONSIDERABLY LESS than fully installed under-the-counter RO systems, while at the same time, delivering often Cleaner, Purer, and Better Tasting Water. Why waste money & add to landfills with bottled water (93% recently found tocontain micro-plastics)? 1 SET OF FILTERS REPLACES 4500 PLASTIC WATER BOTTLES (16.9 oz) - Forget about the hassle & cost of buying bottled water
• QUICK CHANGE TWIST AND SEAL FILTERS come included with your first AQUA TRU system, and last from 6 months to 2 years
• SLEEK COMPACT DESIGN - 14'' Tall x14'' Deep x 12'' Wide - Purifies 1 gallon of tap water into bottle-quality water in 12-15 minutes. AQUA TRU water purification system is backed by our 30 day unconditional 100% Satisfaction Guarantee. If you’re not satisfied with our water filter for any reason, please let us know and we will provide you with a no questions asked refund.

AQUA TRU

• COUNTERTOP FILTRATION: No plumbing or installation is required for this RO system.Simply plug this purifier into any power source to enjoy a cup of filtered water anytime! We added the manual flushing function to help maintain the system! When the banana-shaped water volume button and the round water-making button flashing together, please follow the reminder and press them simultaneously to trigger the 6 minutes self-cleaning to flush out the remained contaminants.
• POWER SAVING/WATER SAVING: Water system automatically enters power-saving standby mode when not in use to reduce power consumption. Leftover water from a cycle isn't deemed wastewater so more water is saved to use for various household purposes.
• 4-STAGE FILTRATION: 4 levels of filtration are utilized to ensure the purest water possible. 99.9% of all possible contaminants are filtered out so you can confidently drink your own tap water.
• FILTER LIFE MONITOR: The countertop water filters last for a long time between 12-24 months to provide 1-2 years of clean drinking water before needing replacement. Filters are also designed to help save water with an impressive 2:1 Pure to Drain ratio. Monitor display shows the service life of filters and water quality so you can easily keep track of filter replacement and periodically switch out filter tubes.
• TECHNICAL SUPPORT/WARRANTY: 1-year warranty can be found in the manual or Bluevua official website. Simply scan the QR code and fill out the purchase information for 1-year manufacturer warranty registration. In addition, online customer service is also available for help. We stand behind our products and our company. If for any reason you are not completely satisfied with your Bluevua products, we offer a 30-day full refund and a 1-year warranty on all our products.

Bluevua