Reverse Osmosis Water Filter

Reverse osmosis water filter! We've got the top 21 osmosis systems for 2019 in our curated list! *ORDER NOW* See reverse osmosis water filter products from reliable reverse osmosis filter brands
(iSpring, APEC, Ecopure, Home Master, etc.), reverse osmosis water filters that can handle several gallons per day (50 gpd, 75gpd, 100gpd, 300gpd), reverse osmosis water filter multi stage systems that will clean your water with osmosis (4-stage, 5-stage, 6-stage, 7-stage, 8-stage) and more!

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Last update on 2019-08-22 at 00:45 Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.

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iSpring RCC7AK 6-Stage Superb Taste High Capacity Under Under Sink Reverse Osmosis Drinking Water Filter System with Alkaline Remineralization - Natural pH, White
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iSpring RCC7AK 6-Stage Superb Taste High Capacity Under Under Sink Reverse Osmosis Drinking Water Filter System with Alkaline Remineralization - Natural pH, White
  • High Capacity Reverse Osmosis water filtration for safer, healthier water. This under sink mounted water filter and...
  • Experience clean, safe, good-tasting water every time you turn on the faucet. Enjoy crystal clear ice cubes,...
  • The RO membrane removes not only harmful pollutants but also a few helpful minerals. As a result, a standard 5...

Last update on 2019-08-22 at 05:48 Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.

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Reverse osmosis is a filtration method that removes harmful compounds found in water to make it potable.  It uses pressure and a semi permeable membrane to purify water of impurities and foreign contaminants.

The reverse osmosis filter has become very popular since its introduction to the market because more and more people are becoming aware of its benefits. Thus, reverse osmosis water filter products have become quite popular!

Though reverse osmosis water filter systems may be unnecessary in most cases, having a good supply of reverse osmosis drinking water would be healthy for pretty much anyone.

reverse osmosis water filter

reverse osmosis water can be bought commercially but if you’re planning on consuming it on a regular basis, it may be a little pricey to buy reverse osmosis water by the bottle all the time. So, the best option is to buy an independent system... thankfully, we've done all the work for you and have come up with all the reverse osmosis water filter options you'll ever need!

Enough beating around the bush! Here's a list of the 21 Best Reverse Osmosis Water Filters Online.

RO Water Filter #1:
5-Stage Reverse Osmosis Water Filter System (50GPD)

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This reverse osmosis water filter system uses 5 stages to ensure that you are getting clean and safe water. The reverse osmosis water filter system comes with an NSF-certified 50 GPD (gallons per day) membrane and an NSF-certified steel storage tank so you know you are getting the best system for your home. Everything you need comes with the package but installation may take a while because there are plenty of parts to work with. This reverse osmosis water filter also features an auto shut-off valve so you don’t have to worry about forgetting about shutting the system down when not in use.

Pros

  • This rreverse osmosis water filter system is entirely free of any lead and won’t risk contaminating your water with this type of substance.
  • Many customers report this reverse osmosis water filter product making filtered water that tastes much better than their regular tap water.

Cons

  • This reverse osmosis water filter system has been known to cause faucet leaks from very early on.
  • The reverse osmosis water filter system may take several hours to install properly and can be confusing.

RO Water Filter #2: 
4-Stage Portable Reverse Osmosis Water Filter 75 GPD


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If you’re looking for a portable reverse osmosis water filter system that you can use indoors and outdoors, go for the 4 Stage Mikro Alpha Portable System. This reverse osmosis water filter system filters your water through 4 stages and provides up to 98% of contaminate removal. It's ideal for smaller spaces like condos, apartments and even RVs and it has a garden hose adapter that allows for easy usage and storage. It comes with a 75 GPD membrane that is capable of producing 2 to 3 gallons per hour.

Pros

  • This reverse osmosis water filter system is great for removing all sorts of contaminants from your water, including fluoride, chlorine, and several other minerals.
  • The reverse osmosis water filter is easy to install and remove as necessary and small enough for storage.

Cons

  • Installation can be challenging and may take a long time.
  • The fittings on this reverse osmosis water filter system may break down and wear away sooner than the rest of the system.

RO Water Filter #3: 
50 GPD 5-Stage Reverse Osmosis Water Filter System

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A high quality, easy-to-install and efficient reverse osmosis water filter system – that’s what the AMI 5-Stage Home Drinking Water System is. This reverse osmosis water filter system comes pre-assembled so make sure you have ample space in the area where you want to install it!

Pros

  • This reverse osmosis water filter product can process up to 50 gallons of water per day, making it a very efficient system for an average-sized household.
  • The reverse osmosis water filter system can get rid of up to 99% of contaminants including metals, minerals, salt, and many others.

Cons

  • The reverse osmosis water filter system develops leaks easily, especially around the faucet area.
  • Replacing the filters can be a tricky process with this reverse osmosis water filter.

RO Water Filter #4: 
5-Stage Reverse Osmosis Water Filter System (100GPD)

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For those who take their reverse osmosis water filter systems seriously, this is the one for you. This 5-stage reverse osmosis water filter system boasts of a 100 GPD membrane that ensures you of superior performance and results. With a modern chrome faucet and 4 extra filters thrown in, the system features an auto shut-off valve so you don’t waste a single drop of water.

Pros

  • This reverse osmosis water filter product is designed to be easier to install than some of the others listed here.
  • The reverse osmosis water filter product has a built-in leak sensor that causes the system to shut down if it detects a leak issue. 

Cons

  • Many customers report this reverse osmosis water filter product having much lower water pressure than several others listed here.
  • The faucet portion may break sooner than the rest of the reverse osmosis water filter.

RO Water Filter #5: 
iSpring 5-Stage Under-Counter Reverse Osmosis (50GPD)

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This brand name mentioned in many reviews and that is because their systems are one of the best in the market. The iSpring reverse osmosis water filter system RCW5 model, in particular, is fully automated and filters water using 5 stages and it comes with a 50 GPD membrane. All reverse osmosis water filters are wet tested before shipping and they come with a chrome faucet as well, though you may have to purchase different fittings depending on your existing plumbing.

Pros

  • This reverse osmosis water filter system is checked for leaks before shipping to ensure it arrives ready to use with no trouble.
  • The reverse osmosis water filter is able to connect to almost any type of sink with the several different connection options included.

Cons

  • Some customers have reported this reverse osmosis water filter refreshing itself too often.
  • The reverse osmosis water filter may be challenging to hook up to the water line in some instances.

RO Water Filter #6: 
No-Mess Drinking Reverse Osmosis Water Filter System

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The No-Mess Reverse Osmosis Water Filter System is a sleek and compact system that removes lead, cysts, chlorine taste and odor and other water contaminants. The reverse osmosis water filter kit comes with a filter change reminder light so you know when it’s time to change the filters. With quarter turn encapsulated filters, changing is quick and easy. The only downside to this reverse osmosis water filter system is that it does require batteries (included in the kit, lasts up to 4380 hours).

Pros

  • This reverse osmosis water filter is designed to be easy to install with a color-coded installation process.
  • The reverse osmosis water filter features LED lights that let you know when it’s time to perform regular maintenance on this system.

Cons

  • Many customers report this reverse osmosis water filter being very noisy when it’s operating.
  • The pieces of this reverse osmosis water filter are known to be lower quality than several of the others listed here.

RO Water Filter #7: 
​Apex 50 5-Stage Osmosis System


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This reverse osmosis water filter system comes with a 50 GPD membrane and is composed of high quality NSF and FDA approved components. It comes fully assembled so all you need to do is install it. The colored tubing feature makes installation a breeze. All units are wet tested and sanitized.

Pros

  • Many customers like the taste of the water made by this reverse osmosis water filter.
  • This is a quiet running reverse osmosis water filter product that isn’t too obtrusive when it’s on.

Cons

  • Some customers report severe leaks with this reverse osmosis water filter.
  • The customer service for this reverse osmosis water filter is known to be less than ideal.

RO Water Filter #8: 
Hydro-Logic 100-GPD Reverse Osmosis Water Filter


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It may be small but the Hydro-Logic 31035 100-GPD Stealth-RO100 RO Filter does the job of bulkier reverse osmosis water filter systems. This reverse osmosis water filter can remove up to 98% of chemicals and contaminants in your water to give you clean, pure low PPM water that easily compares to commercial bottled water. One common observation about this reverse osmosis water filter, though, is that it produces a little slower than the regular system.

Pros

  • This is a heavy-duty reverse osmosis water filter that can filter up to 100 gallons of water per day.
  • This reverse osmosis water filter is designed to waste less water overall and to be better for the environment when it runs.

Cons

  • The reverse osmosis water filter membrane tends to wear out after just a few months on this product.
  • This reverse osmosis water filter may not filter as well as some of the others on our list.

RO Water Filter #9: 
Express Water 8-Stage Reverse Osmosis System

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With 8 stages of filtration to go through, you just know your water will be as pure as it can get once it reaches your glass when you use the Express Water 8 Stage Alkaline Antioxidant Reverse Osmosis Water Filter System. The system features an auto shut-off valve for efficiency and it also comes with a premium brushed nickel deluxe faucet in the kit. Unlike most Express systems, however, this reverse osmosis water filter kit does not come with extra filters.

Pros

  • Even plumbers recommend this reverse osmosis water filter system for its durability and solid design.
  • The included instructions are easy to follow with or without prior experience.

Cons

  • The reverse osmosis water filter has been known to arrive with some missing pieces.
  • The reverse osmosis water filter system takes several hours to fill and may be inefficient in some instances.

RO Water Filter #10: 
Under-sink Reverse Osmosis Water Filter System 5-stage

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This reverse osmosis water filter system is easy to install and can conveniently fit right under your sink. It features an innovative design that uses the carbon block taste and odor filtration method along with a 5-stage reverse osmosis water filtration system to give you pure, potable and high quality water at home. It comes with a LEAD-free faucet for guaranteed compatibility and has a 50 GPD membrane and a safety water pressure gauge that helps regulate water flow.

Pros

  • The reverse osmosis water filter is made of sturdy plastic pieces that hold up well to a lot of use.
  • The water tastes good from this reverse osmosis water filter.

Cons

  • It can be challenging to install and tighten this reverse osmosis water filter enough to prevent it from leaking.
  • The included directions can be confusing.

RO Water Filter #11: 
iSpring RCC7 - 5-Stage Reverse Osmosis System (75GPD)

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The iSpring RCC7 is one of the latest and the greatest reverse osmosis water filters you can get your hands on. The package comes with NSF / FDA certified components as well as a luxury designer EU-style faucet, water detector and a feed water adapter. Installation is easy and can be followed step-by-step from a YouTube how-to video. This reverse osmosis water filter system, however, can only operate with a minimum water pressure of 35 psi. Otherwise, you will need to use a booster pump to get the best results.

Pros

  • It’s easy to get in touch with customer service for this reverse osmosis water filter if you need to do so.
  • This reverse osmosis water filter is known to work well even with hard water situations.

Cons

  • It is recommended to have a professional plumber install this reverse osmosis water filter system.
  • The included faucet is known to become damaged or develop leaks more easily than the rest of the reverse osmosis water filter system.

RO Water Filter #12: 
APEC 5-Stage Drinking Reverse Osmosis Water Filter

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This state of the art reverse osmosis water filter system is a 100% built in the USA machine that removes up to 99% of the chemicals and contaminants in your tap and well water using the 5-stage filtration process and premium and long lasting filter to produce clean, crisp and pure drinking water that’s safe for the whole family. The APEC ROES-50 is made of high quality materials and operates noise-free for many years, eliminating the need to buy reverse osmosis water filters every now and then in the long run. It is easy to install and even easier to maintain. All you need to do is replace the filters every 6 to 12 months to continuously enjoy great-tasting water.

Pros

  • This reverse osmosis water filter comes pre-assembled so all you need to do is put a few extra pieces together and install it.
  • The reverse osmosis water filter system features long-lasting filters that are built to stand up to a lot of use.

Cons

  • This is a lesser-known reverse osmosis water filter that may not have as much customer satisfaction to back it up.
  • This is a large reverse osmosis water filter that may take up a lot of room under your sink.

RO Water Filter #13: 
APEC Water - Countertop Reverse Osmosis Water Filter

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Clean and safe water on the go shouldn’t be so hard to get a hold of and if having great tasting potable water everywhere you go is what you want, you should definitely go for the APEC RO-CTOP reverse osmosis water filter.

The whole reverse osmosis water filter is portable and does not require any installation so you are free to take it with you virtually anywhere. All you need to do is hook it up to a sink and you can enjoy bottled water quality drinking water in no time. This is ideal for those who are always on the move or those who are living in very small spaces. One downside, though, is that this reverse osmosis water filter produces water rather slowly so you’ll have to fill up jars when you have time to make sure you have clean water on the ready all the time.

Pros

  • This reverse osmosis water filter is very simple and quick to install without much trouble.
  • This reverse osmosis water filter is a great choice for a smaller space.

Cons

  • This reverse osmosis water filter is not designed to work with all types of faucets and can only be used with the standard variety.
  • Since this is a smaller reverse osmosis water filter system, it may not be powerful enough for a larger home.

RO Water Filter #14: 
APEC Water Reverse Osmosis Filter System (90GPD)

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Another great reverse osmosis water filter offering from APEC Water brings the same quality as their previous models on this list but now with up to 90GPD. This reverse osmosis water filter gives you more power for situations that may need to run on a bit more juice than average. Like the other reverse osmosis water filters, you can expect top tier quality and a super efficient design all built to perfection in the USA.

Pros

  • You can choose between chrome or brushed nickel for the faucet on this reverse osmosis water filter.
  • This is one of the best-selling reverse osmosis water filter systems on the market today.

Cons

  • The water pressure may go down quite a lot after a few months of use.
  • The product may not work as well for very hard water as some of the other reverse osmosis water filters listed here.

RO Water Filter #15: 
iSpring 6-Stage Reverse Osmosis System (75GPD)

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If you’re looking for a reverse osmosis water filter that you can truly consider as an investment, look no further than the iSpring RCC7AK. This is a cutting edge system that effectively and efficiently purifies your water using 6 stages. As with all the other iSpring reverse osmosis water filters, you can watch an installation walk through video for this system on YouTube to make it easier for you. It also boasts of a bigger membrane square footage that delivers fresh water quicker than the average reverse osmosis water filter system.

Pros

  • This reverse osmosis water filter is both a filter and a water softener, so it improves your water significantly overall.
  • This reverse osmosis water filter system can remove many different types of bacteria and other contaminants with no trouble.

Cons

  • The reverse osmosis water filter is known to develop cracks in the bottom of the canister portion very easily.
  • The faucet portion of this reverse osmosis water filter has been reported by customers to leak.

RO Water Filter #16: 
iSpring UV - 7-Stage Reverse Osmosis Water Filter (75GPD)

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Another reverse osmosis water filter worth the splurge is the iSpring RCC7AK-UV. It comes with the standard iSpring reverse osmosis water filter features but this particular one uses a 7-stage process (including an alkaline stage) to assure you that you are getting only the purest, cleanest, freshest and best tasting water directly from your tap. It also has a booster pump feature for those in homes with less than 35psi water pressure. Aside from that, the RCC7AK-UV reverse osmosis water filter also boasts of a powerful 11w UV light feature flow sensor switch that powers on and off controlled by the drinking faucet.

Pros

  • This reverse osmosis water filter can remove up to 99% of contaminants, including heavy metal pollutants like arsenic and lead.
  • The reverse osmosis water filter uses a high-quality UV sterilization process to clean up your water.

Cons

  • The included directions are very confusing and may be challenging even for a professional to figure out.
  • The plastic connectors may break sooner than the rest of this reverse osmosis water filter.

RO Water Filter #17: 
Artesian Undersink Reverse Osmosis System 

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The innovative design of the Home Master TMAFC Artesian Full Contact Undersink Reverse Osmosis Water Filter System solves most of the common problems one would encounter with standard and ordinary systems like leakage and slow water flow and production rate. It removes up to 98% of chemicals and contaminants in your water and adds minerals (calcium and magnesium) using the patented Full Contact technology for water that’s not only clean and safe but healthy as well. This reverse osmosis water filter is truly worth every penny.

Pros

  • This is a very well-selling reverse osmosis water filter that many customers are very pleased with.
  • The reverse osmosis water filter adds magnesium and calcium to your water to make it even healthier for you.

Cons

  • Some customers report the quality of this product going downhill from previous reverse osmosis water filter models from the same company.
  • The reverse osmosis water filter is very noisy when it’s running.

RO Water Filter #18: 
APEC Water Reverse Osmosis Water Filter (Low Pressure)

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If a top-notch reverse osmosis water filter is what you’re looking for, you should check out the APEC Water Ultra Safe & High-Efficiency Permeate Pumped Reverse Osmosis Filter System for Low Water Pressure Homes (RO-PERM).

This state-of-the-art reverse osmosis water filter uses a 5-stage RO filtration process that removes up to 99% of chemicals and contaminants in your water and features a patented permeate pump technology that increases delivery pressure at the faucet and allows for faster water flow and production. It is also equipped super capacity filters that last twice as long as the standard filters and comes with a LEAD-free chrome faucet and JG food-grade tubing.

Pros

  • This reverse osmosis water filter is built specifically for low water pressure homes and can work even when the pressure is not very good.
  • The reverse osmosis water filter is capable of removing tons of contaminants, including viruses and bacteria, from the water.

Cons

  • Installation may be challenging with this reverse osmosis water filter.
  • The charcoal in the reverse osmosis water filter may seep into the water in some instances.

RO Water Filter #19: 
iSpring Commercial Reverse Osmosis Filter (300GPD)

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It may be pricier than the standard reverse osmosis water filter you can find online but the iSpring RCB3P-NT is well worth it in the end. This reverse osmosis water filter features a free-standing frame and a built in pressure gauge along with 20” prefilters and 3 100GPD membranes, allowing it to produce a maximum of 300 gallons per day which is great if you plan on using it for commercial purposes. Just hook it up to a tank (sold separately) and you can enjoy clean and pure water.

Pros

  • This reverse osmosis water filter product is heavy-duty enough for use in commercial settings like restaurants or stores.
  • This reverse osmosis water filter system comes with a frame to allow it to stand up on its own without requiring mounting or under-sink installation.

Cons

  • The motor has been known to break down easily on this reverse osmosis water filter.
  • The carbon filter portion has been known to develop issues sooner than the rest of the reverse osmosis water filter product.

RO Water Filter #20: 
Aquaphor Compact Reverse Osmosis Water Filter System

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Clean and safe water starts with a good reverse osmosis water filter system and that is exactly what the Aquaphor DWM-101 Compact RO Reverse Osmosis System with Built In Airless Storage Tank and Mineralization is.

This reverse osmosis water filter system is NSF approved, BPA-free and LGA certified so you are assured that you are getting the best quality and the best bang for your buck as well. Physically, it’s only half the size of your standard reverse osmosis water filter unit but performance-wise, it is just as good, if not far better than the standard RO water filter. It operates efficiently at low pressure and saves 50% of wasted water. Reverse osmosis water filters will bring potable drinking water to your home easily and effectively. Join the reverse osmosis water filter revolution today!

Pros

  • This reverse osmosis water filter system can work well at lower water pressures.
  • The reverse osmosis water filter’s components are made of recyclable food-grade plastics for maximum safety and environmental friendliness too.

Cons

  • The reverse osmosis water filter product can be noisier than some others when it’s running.
  • The included instructions are confusing and may make installation difficult.

RO Water Filter #21: 
HydroPerfection Undersink Reverse Osmosis Water Filter


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The Home Master HydroPerfection Undersink RO System is a great choice if you are looking for an reverse osmosis water filter that can filter tap water as well as well water and city water. It uses an advanced filtration and purification stage that removes up to 99% of chemicals and contaminants in water and has long lasting and easy to change filters that are easy to maintain and replace.

Pros

  • This reverse osmosis water filter adds minerals back to your water to improve the taste as well as the health benefits.
  • The reverse osmosis water filter is easy to change and doesn’t have to be changed for a long time.

Cons

  • The instructions are very unclear on this reverse osmosis water filter.
  • Some customers report the reverse osmosis water filter causing unpleasant tastes in the water, although this is uncommon.

Grab a Fantastic Reverse Osmosis Water Filter Today

As you can see, reverse osmosis water isn’t totally different from the other types of household water filtration out there, but it’s not exactly the same either. Reverse osmosis water filters may be right for your home, but there’s always a chance it isn’t what you’re looking for. Consider all the pros and cons of reverse osmosis water filters before deciding whether or not to install one of these systems in your home. Remember, however, that this is one of the most powerful types of household water filtration available, and that it can go a long way toward improving the quality of the tap water in your home.

Good luck and don't forget to ENJOY using one of these awesome reverse osmosis water filters!

Grab a great reverse osmosis water filter and cleanse your water today!