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Best Reverse Osmosis Systems for Well Water

"Reverse Osmosis Systems: For When You Want the Purity of Well Water... without the Taste."

Positive feelings from past customers

  • The water quality is excellent

  • The customer service was top notch

Negative feelings from past customers

  • No instructions included

  • US voltage adapter supplied

  • Product is bulky

  • Installation is difficult

  • The taste of the water

The Express Water UV Reverse Osmosis Water Filtration System is a complete solution for your drinking water needs. This system purifies and sterilizes your water, removing up to 99.99% of contaminants, including lead, chlorine, fluoride, cyanide, Giardia, radium, asbestos, calcite, heavy metal, bacteria, viruses, pharmaceuticals, and other major contaminants. The UV light is equipped with a warning light that will alert you when the power of the UV falls below the germicidal range. The system includes a fast flow faucet with 0.8 GPM delivery, a compact system made to fit under counter in a cabinet, and a 4 gallon (3.2 gallon water capacity) storage tank and tank stand. The system is compatible with 3/8" and 1/2" under sink connections and operates on 40-80 PSI water pressure.


The EXPRESS WATER UV Reverse Osmosis Water Filtration System – 11 is a powerful filtration system that removes up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, Bacteria, and more from your drinking water. The UV Water Purification System eliminates microorganisms like coliform, E. Coli, viruses, bacteria, microorganisms, and more from your drinking water. The Alkaline Water Filter with Active Mineral Technology adds Calcium, Potassium, Magnesium, and other minerals to your body needs right in your water. The Under Sink Water Filter is quick and easy-to-understand design means you can install and understand everything about your new water filtration system. The quality of the 1-year on all Express Water Reverse Osmosis Water Systems is guaranteed. The Under Sink Water Filter System doesn't require you to mess with refilling or activating your Alkaline UV water filter system. The leak Detection feature shuts off water flow when it detects unwelcomed moisture. On Demand Support from experts who can answer any of your questions about your new water filter is available.


Reviewers seem to really like this product, giving it mostly 5-star reviews. There are a few 1-star reviews, but they make up a very small percentage of the total.


According to user reviews, the EXPRESS WATER UV Reverse Osmosis Water Filtration System is an effective and affordable way to filter water. The 11 stage UV filtration system removes impurities and bacteria, while the alkaline filter adds essential minerals back into the water. The faucet and tank are easy to install and use, and the filtered water tastes great.

$259.99 AT AMAZON

Positive feelings from past customers

  • The product has a sleek design

  • The product is easy to install

  • The product is easy to maintain

  • The product has a small footprint

  • The product has a fast flow rate

Negative feelings from past customers

  • The jG3P800 was pricey

  • The faucet is a little flimsy

  • The water flow is a little slow

The Waterdrop G3P800 Reverse Osmosis System is a high-performance filtration system that removes up to 99% of contaminants from your water. With a fast flow rate of 800 gallons per day, this system is perfect for large families or businesses who need clean, safe water. The system is certified by NSF/ANSI to meet strict standards for quality and performance, so you can be sure you're getting the best possible filtration.


The Waterdrop G3P800 reverse osmosis system offers high capacity (800 gallons per day), fast flow (6 seconds per cup), and a 3:1 pure to drain ratio. The RO system is equipped with a LED lamp, and has the sterilization rate up to 99.9%. The system is equipped with a smart faucet, by which you can get the TDS level and water quality and filter life at a glance.


The vast majority of users who have reviewed the product have given it a 5-star rating, indicating that they are highly satisfied with it. There are very few 1-star reviews, indicating that the few users who were unhappy with the product are in the minority.


According to user reviews, the Waterdrop G3P800 is an excellent reverse osmosis system that provides 800 gallons per day of fast, pure water. It is certified by NSF/ANSI 58 and has a 3:1 pure to drain ratio. The tankless RO water filter system is easy to install and use, and the LED purifier and smart faucet make it even easier to get pure, clean water. The TDS reduction system ensures that your water is free of harmful chemicals and contaminants.

$999 AT AMAZON

Positive feelings from past customers

  • Easy to install

  • Water tastes great

  • Saves water

  • Good flow rate

  • Good customer service

Negative feelings from past customers

  • The loaded package is a complete ripoff, so disappointed

The Home Master TMAFC-ERP Artesian Full Contact Undersink Reverse Osmosis Water System is one of the best reverse osmosis systems on the market, delivering clean, great-tasting water while also adding beneficial minerals. This system features a built-in non-electric permeate pump that will reduce water waste while increasing water production. Additionally, the Home Master TMAFC-ERP features a modular filter design and easy-to-change filters for your convenience. With a faster flow rate than traditional RO systems, the Home Master TMAFC-ERP is a smarter choice for your home.


The Home Master TMAFC-ERP Artesian Full Contact Undersink Reverse Osmosis Water is a better RO system that solves most common problems associated with cannister and tankless RO systems. It has a patented remineralization system that adds calcium and magnesium twice during the purification process for reduced storage tank degradation and great tasting, highly pure Mineral Water on Tap. The NSF Certified Components meet or exceed NSF standards for material safety and performance. The system is made in USA. It has a built in non-electric permeate pump that reduces TDS creep and water waste up to 80%, increases water production up to 50%. No electricity required. The included Fast Flo RO! Kit has larger fittings and tubing provide twice the flow of traditional RO systems. The modular design is easy to upgrade and service. Filter changes once per year or 2000 gallons with no wrenches required. The Home Master catalytic carbon outperforms ordinary activated carbon in removing stubborn chloramines, chlorine and other chemicals. The dedicated sediment filter prolongs the life of down-stream filters, ensuring highest possible water pressure and reduced water waste.


The sentiment is extremely positive, with the majority of reviewers giving the product 5 stars. There are very few 1-star reviews, indicating that people generally either love or are neutral towards the product.


According to user reviews, the Home Master TMAFC-ERP Artesian Full Contact Undersink Reverse Osmosis Water Filter System is an easy to install and highly effective water filtration system that provides great tasting water. This system is designed to remove up to 99% of contaminants from your water, including chlorine, lead, fluoride, and more. The Artesian Full ContactUndersink Reverse Osmosis Water Filter System also features a built-in booster pump for increased water pressure, making it a great choice for homes with low water pressure.

$358.33 AT AMAZON

Positive feelings from past customers

  • Easy to install

  • Good water quality

  • Good flow rate

  • Takes up less space than other models

  • Removes impurities from water

Negative feelings from past customers

  • Takes up space under the sink

  • Difficult to install if you are not handy

  • Need to drill a hole for the filter faucet

The Frizzlife RO Reverse Osmosis Water Filtration System can filter up to 800 gallons per day, making it a great choice for families or businesses. The system includes a sediment filter, carbon block filter, and RO membrane, as well as a storage tank and faucet. Installation is easy and the system comes with a one-year warranty.


The Frizzlife RO Reverse Osmosis Water Filtration System is a 7-layer filtration system that removes 1000+ harmful contaminants from water. It has a 2:1 super low drain ratio, meaning that for every 2 cups of RO water produced, only 1 cup of waste water is drained. The system is capable of producing 800 gallons of RO water per day with a flow rate of up to 0.56 gallons per minute. The smart panel on the system displays real-time TDS readings and remaining filter life for each cartridge. The Frizzlife RO system is tankless and features a built-in pump to prevent potential secondary contaminants. Installation is quick and easy with the included guide video.


The sentiment seems to be positive, with 74% of reviewers giving the product 5 stars. Only 3% of reviewers gave it 1 star.


According to user reviews, the Frizzlife RO Reverse Osmosis Water Filtration System is a high-quality, efficient, and easy-to-use product that provides clean, filtered water quickly and easily. It is compact and takes up very little space under the sink, and has a high flow rate of 800 gallons per day. It also comes with a 2:1 drain ratio, meaning that for every two gallons of water filtered, one gallon is wasted. This product is backed by USA tech support and a 1-year warranty.

$699 AT AMAZON

Positive feelings from past customers

  • The company is responsive to questions

  • The system is easy to install

  • The water tastes good

  • The system is efficient

Negative feelings from past customers

  • Difficult or impossible to install

  • Water pressure not high enough

  • Have to order replacement filters from USA

  • System leaks

The APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified is a complete 5-stage water filter system that is made from high caliber components to offer exceptional contaminant rejection rates and long-lasting, reliable performance. This system is designed to remove up to 99% of all contaminants, such as chlorine, taste, odor, toxic fluoride, arsenic, lead, and chromium. The ROES-50 reverse osmosis system has been tested and certified to the highest standard in the industry- WQA gold seal to deliver the highest quality clean, filtered drinking water at an affordable price. This system is designed, engineered, and assembled in the USA by leading reverse osmosis manufacturer APEC Water Systems. APEC has 20 years of successful experience in creating the finest water filtration systems from their California facility. All APEC reverse osmosis systems are designed, engineered, assembled, and tested in-house using high-quality parts to ensure that a trouble-free system arrives at your door.


The APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified is a water filtration system designed, engineered, and assembled in the USA. The system is WQA certified to provide unlimited clean, refreshing, crisp tasting water that is superior to bottled water. The system comes with 100% lead-free designer faucet, plus certified JG food grade tubing and parts to provide safe, contamination-free pure water. The system has a 2 year extended manufacturer warranty and is backed by America's No.1 rated water filter brand.


The product has received an overwhelming amount of positive reviews, with 85% of users giving it a 5-star rating. A tiny minority of users have given it a 1-star rating, but the vast majority of users seem to be very happy with the product.


According to user reviews, the APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System is an excellent product that provides clean, great-tasting water. It is easy to install and is very affordable. This product is certified by WQA to remove up to 99% of contaminants, including lead, chlorine, fluoride, arsenic, and bacteria.

$183.99 AT AMAZON

Positive feelings from past customers

  • The product has a high quality customer service.

  • The product is easy to install.

  • The product has a great taste.

  • The product is a great value for the price.

  • The product is easy to use.

Negative feelings from past customers

  • Customer service is not helpful

  • The product does not work well

  • The product is difficult to install

  • The product is difficult to use

  • The product is not durable

The iSpring RCC7AK is a top-of-the-line reverse osmosis water filtration system. It is NSF certified to remove up to 75 gallons per day of contaminants, including lead, chlorine, fluoride, and more. The 6-stage filtration process ensures that your water is clean and safe to drink.


The iSpring RCC7AK is a 6-stage reverse osmosis system that is certified to NSF/ANSI 58. It is designed to remove up to 99% of over 1,000 harmful contaminants from your water, including chlorine, fluoride, lead, arsenic, asbestos, calcium, sodium, and more. The system also includes an alkaline remineralization filter to restore healthy minerals and produce a balanced alkalinity, giving your water a more natural taste. The system is easy to install and comes with a 1-year limited manufacturer warranty.


The product has received an overwhelmingly positive response from users, with 85% of ratings being 5-stars. There are very few 1-star ratings, indicating that users are generally satisfied with the product.


According to user reviews, the iSpring RCC7AK is an excellent reverse osmosis system that does an amazing job of filtering out impurities and contaminants from your drinking water, resulting in superb-tasting water. The 6-stage filtration process ensures that your water is as pure as possible, and the pH+ alkaline remineralization feature helps to improve the taste of the water even further. Installation is said to be fairly straightforward, and the unit is very well-built and durable. Overall, this is an excellent water filtration system that will provide you with many years of clean, fresh-tasting water.

$216.73 AT AMAZON

Positive feelings from past customers

  • The product produces good-tasting water

  • The product is easy to install

  • The product is easy to use

  • The product is affordable

  • The product has a small footprint

Negative feelings from past customers

  • Faucet leaks

  • Storage tank is not 4 gal

  • Automatic shut off was installed backwards

This system will remove up to 99% of all contaminants including bacteria, viruses, organics, chlorine, fluoride, chromium 6, lead, mercury, and more. The Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage system is a complete solution for your drinking water needs. This system removes up to 99% of all contaminants, including bacteria, viruses, organics, chlorine, fluoride, chromium 6, lead, mercury, and more. This system is compatible with 3/8" and 1/2" under sink connections and operates on 40-80 psi water pressure. The system comes with a 4 gallon storage tank and tank stand, as well as all filters needed for setup and first year of use. This system can be installed undersink, in a basement or other remote location.


The Express Water RO5DX is a reverse osmosis water filtration system that is NSF certified and removes up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, and more. The water purification system is designed so that all of the filters work together to produce the safest and best tasting water possible. The under sink water filter is easy to install and does not require professional installation. The under sink water filter system also has a leak detection feature that will shut off the water flow if it detects any moisture. The RO water filter system is also customizable and can be upgraded with additional filtration attachments including a UV Water Filter, Alkaline Water Filter, Deionization Water Filter, and more.


Most people who have reviewed the product have given it a 5-star rating, meaning they are generally happy with the product. There are a small number of 1-star reviews, but these are outnumbered by the positive reviews.


According to user reviews, the Express Water RO5DX is an effective and easy-to-use reverse osmosis filtration system that removes impurities from your water supply, providing you with clean, fresh-tasting water. The five-stage filtration process ensures that your water is free of contaminants, while the included faucet and tank make it easy to dispense and store your water. This system is NSF certified and comes with a one-year warranty, making it a great option for those looking for a reliable and affordable filtration system.

$152.76 AT AMAZON

Positive feelings from past customers

  • Easy to install

  • Good water flavor

  • Compact size

  • Fast flow rate

  • Reasonable replacement filter prices

Negative feelings from past customers

  • Difficult or impossible to find replacement filters

  • Leaks

  • Takes up a lot of space under the sink

  • Need to be handy to install

The Vortopt Reverse Osmosis Water Filtration System 400 GPD Fast Flow is a top-of-the-line water filtration system that removes impurities from your water to give you clean, fresh-tasting water. This system features a fast flow rate of 400 gallons per day, a 4-stage filtration process, and a space-saving design that makes it perfect for any home.


The Vortopt Reverse Osmosis Water Filtration System is a premium filtration system that removes over 1000+ contaminants, including TDS, chlorine, salt, and other impurities. The system has a natural activated carbon filter that also improves the taste of pure water. The system has an intelligent reminder that tells you when to replace the filters, and the replacement process only takes 3 seconds. The system is cost-effective, with a low drain ratio and an auto flushing function that prolongs the service life of the filters. The integrated design reduces the risk of water leakage and the system is certified by FCC. The system has a fast flow rate that fills a cup of water in 5 seconds. The system comes with a one year manufacturer warranty.


Overall, reviewers seem to be happy with the product, giving it a 58% five-star rating. However, there is a significant number of one-star reviews (11%) compared to other products in the same category.


According to user reviews, the Vortopt RO system is an excellent filtration system that removes impurities and provides great tasting water. It is easy to install and use, and has a fast flow rate. It is also very efficient in reducing Total Dissolved Solids (TDS), making it a great choice for those who want clean, pure water.

$249.99 AT AMAZON

Positive feelings from past customers

  • The water tastes great

  • It is easy to install

  • The product is compact

  • The product comes with a great customer service

Negative feelings from past customers

  • They had a couple of installation issues

The Deepuro Reverse Osmosis System Under Sink 600GPD RO System Tankless is a top quality product that will remove impurities from your water and make it taste great. This system uses reverse osmosis to remove contaminants, and it has a 600 gallon per day capacity. It is also tankless, so you'll never have to worry about running out of filtered water.


The Deepuro Reverse Osmosis System Under Sink 600GPD RO System Tankless is a home and kitchen filtration system that produces great-tasting, healthy water that is free from chemicals and heavy metals. The system is easy to install and has a fast water flow rate. It is certified by European conformity and comes with a lifetime tech support.


Overall, reviewers seem happy with the product, giving it a five-star rating 67% of the time. Eleven percent of reviewers give it just one star, while the rest are in between.


According to user reviews, the Deepuro Reverse Osmosis System Under Sink 600GPD RO System Tankless RO Water System, 0.0001μm RO Purifier 5 Stage, Undersink Water Filter System, 1:1 Pure to Drain, Great Tasting Fast Flow, WS6A Light White is an excellent product that provides great tasting, fast flowing water while also being very easy to install. This product is perfect for anyone who wants clean, filtered water without having to worry about constantly refilling a traditional water pitcher.

$269.86 AT AMAZON

Positive feelings from past customers

  • Easy installation

  • Good quality of filtered water

  • Takes up less space than other models

  • Good value for the price

Negative feelings from past customers

  • Difficult to find replacement filters

  • Unreliable customer service

Looking for a way to avoid tap water? COMFEE' reverse osmosis system can help remove contaminants such as chlorine, lead, and hazardous chemicals from tap water. Plus, it makes the water taste better. Use COMFEE' water filtration system to get healthier and better-tasting water in a more affordable way.


The COMFEE’ Reverse Osmosis System is a 5-stage filtration system that removes heavy metals, harmful substances, dissolved solids, chlorine and other common contaminants from tap water. The system has a filtration precision of 0.0001μm (micron) and a 1.5:1 low drain ratio. The integrated water path reduces joints and prevents water leakage. The lead-free materials used in the water path conform to the NSF 372 standards. The system has a filter replacement reminder and easy 3-step replacement process. The tankless design provides fresh drinking water.


The vast majority of users who have rated this product give it high marks, with 67% giving it a full five stars. Just over 10% give it just one star, with the rest falling in between.


According to user reviews, the COMFEE’ Reverse Osmosis System is an excellent product that provides clean, filtered water. It is easy to install and use, and the customer service is responsive and helpful. The only downside is that it does not remove all contaminants from the water, but it does reduce the amount of dissolved solids (TDS) significantly. Overall, this is a great product for anyone looking for an under-sink water filtration system.

$188.42 AT AMAZON

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