8 best reverse osmosis water filters

Review of the best according to the editorial board. About selection criteria. This material is subjective and does not constitute advertising and does not serve as a purchase guide. Before buying, you need to consult with a specialist.

The use of reverse osmosis water purification has been around since the 1970s. The passage of liquid through a membrane with fine pores, 1-5 microns in size, allows you to retain nitrates, salts, sodium ions, sulfates, viruses, bacteria and other particles, passing only water molecules. If you want to buy such an installation in a house or apartment, consider specific tips for choosing and those models that have been selected by experts based on reviews and characteristics.

How to choose a reverse osmosis filter

To understand the differences between reverse osmosis systems, it is important to understand the key parameters of the filters. Then you will be able to assess whether the product is worth your money or there are similar ones, but cheaper.

Number of cleaning stages

Occurs from 3 to 7 levels. The more there are, the higher the water quality. Possible options include:

1. A coarse filter that traps fine debris, rust, sand.
2. Carbon filter that absorbs chlorine and other elements.
3. Polypropylene filter that eliminates the smallest fractions.
4. IR cut filter that kills viruses and bacteria.
5. The membrane itself is of the reverse osmosis type.
6. Activated carbon post-treatment, completing the fine filtration process.
7. Mineralizer that saturates the water with useful minerals that have been removed by the previous steps along with debris, viruses and chemical impurities.

Membrane porosity

The quality of cleaning and throughput depends on this indicator. The best in terms of filtration quality is considered to be a product with pores of 1 micron. The average is 3 microns, and 5 microns is satisfactory.

Performance

The system is capable of delivering clean drinking water from 80 ml to 250 ml per minute. More efficient installations can pass up to 1 liter of liquid. If the product is purchased for domestic needs, then this is an insignificant factor, but in the case of cafes or other catering places, you should choose models with an indicator close to 1 l / min.

Storage tank volume

The storage tank, which contains a supply of drinking water, helps to partially compensate for the low productivity. Its capacity ranges from 4 to 12 liters. A rubber bulb with air is provided inside the tank, which creates pressure for the liquid to exit from the tap. As the pressure is released, the container is filled with new filtered water. The storage tank will help all family members get drunk faster at once. There are installations without a reservoir, but if the water in the water supply suddenly turns off, then there will be nothing to drink.

Lower allowable pressure

A certain pressure is required for the flow to pass through the reverse osmosis membrane. Some models have 2.8 atm, while others have 3.5 atm. If the input pressure in your area is insufficient, choose filters with installed pumps.

Crane configuration

The product is completed with a spout with a valve, of which there can be one or two (the latter is single-lever, with the ability to turn in both directions). This design is practical for distinguishing between filtered and mineral-rich water. If you are not a fan of mineralization, then a spout with one valve is enough.

Overall dimensions

When choosing a filter, take into account its dimensions so that the system fits under the sink. Therefore, first measure the free space with a tape measure, and then look for a product that is suitable in size.

Rating of the best reverse osmosis water filters

Nomination	a place	Name of product	price
The best water filters under the reverse osmosis sink	1	Aquaphor DWM 201 four-stage	RUB 22 900
	2	Prio New water Expert Osmos Stream MOD600	RUB 30,470
	3	Geyser Prestige M (12 l) six-stage	RUB 10 600
	4	Atoll A-550m STD five-stage	RUB 17 850
	5	BARRIER PROFI Osmo 100 five-stage	RUB 11,570
	6	Aquaphor OSMO-Crystal 100 version 4 four-stage	RUB 6,930
The best main water filters with reverse osmosis	1	RAIFIL RO588W 220 EZ five stages	RUB 64,880
	2	Geyser Prestige Maxi 1500	RUB 43 900

The best water filters under the reverse osmosis sink

It's time to look at specific models selected by experts. Perhaps among them you will find exactly the one that suits the needs of your family, and you will not have to look for others. First of all, we offer 6 filters for the sink, which will ensure the purity of the flow entering the kitchen. This is practical as this is where users drink and prepare liquid food. The review is based on the analysis of technical characteristics on the analytical portal https://rankquality.com/water-filters-softeners/.

Aquaphor DWM 201 four-stage

Rating: 4.9

The experts gave the first place in the review to the domestic development from “Aquaphor”, which has four stages of cleaning. In addition to reverse osmosis, the installation has a block with coal, a mineralizer, a flask that retains free chlorine and iron. The filter is made in a single block, where a water pump is already provided for increasing the pressure. The storage tank allows you to have a stock of 5 liters. The throughput of the system is 250 ml per minute, but the low indicator is due to the increased quality of cleaning, since the porosity of the membrane is 3 microns. According to reviews, the owners connect the filter not only to the sink, but use it to directly supply water to the coffee machine (there is a special outlet).

The reverse osmosis filter features an intelligent control system that monitors the throughput. Each cleaning stage has its own indicator that notifies about the resource. When the end of the life of one of the elements is approaching, the filter beeps. All this will help you not to miss the replacement of components and always have clean water.

Advantages

• beautiful spout with a tap;
• convenient block system;
• water is suitable for newborns;
• there is a separate indication of the resource for each cartridge.

disadvantages

• for some, it beeps after each turn on – this is a malfunction, and not a feature of work;
• productivity is only 250 ml / min;
• the pump hums noisily enough.

Prio New water Expert Osmos Stream MOD600

Rating: 4.8

A filter with a reverse osmosis system operates on a flow-through technology, without placing a liquid in a storage tank. The throughput of the plant is 1.25 liters per minute. This is partly due to the slightly increased porosity of the reverse osmosis membrane – 5 microns. In total, the model has 4 cleaning stages. There is also a pump that compensates for low pressure from the water supply. The post-filter is made in a combined form and at the same time removes the residues of impurities, and also mineralizes the composition.

If you don't have any space under the sink, we recommend installing this filter. Its dimensions are only 34x37x12 cm. The low pressure pump is also made with a flat body of 31x22x12 cm and can be attached next to or on the opposite side under the sink. Thin blocks are easy to position on one side of the cabinet, leaving room for a waste grinder and other devices. This model also has one of the highest productivity among household appliances – 1.25 l / min.

Advantages

• reverse osmosis auto flushing;
• has its own pump;
• faucet for two channels;
• 3 year warranty.

disadvantages

• there is no storage tank, therefore, in the absence of water in the system, there will be nothing to drink;
• very expensive replacement filters;
• noisy pump unit.

Geyser Prestige M (12 l) six-stage

Rating: 4.7

Another domestic brand offers a reverse osmosis filter at a more affordable price than the competition. The system is distinguished by 6-stage cleaning. In addition to the reverse osmosis membrane, there are two carbon blocks filled with coconut activated carbon, a sediment cartridge, a carbon post-filter and a mineralizer. The service life of the replaceable elements is 12 months, and the porous membrane will last from 1 to 3 years, depending on the water quality in the region. The two-position tap provides supply of both pure purified water and saturated with minerals. The filter throughput is only 130 ml per minute, but this is due to the porosity of the reverse osmosis partition of 1 micron. If the water is heavily contaminated at the inlet, then the second stage can be replaced with an ion exchange unit.

The filter stands out with one of the largest storage tanks – 12 liters. It is important for a large family of 4-6 people or a cafe to cook food on water purified by reverse osmosis.

Advantages

• two-position valve;
• the cost is half the price of the above filters;
• the possibility of technical re-equipment of the filter;
• the porosity of the reverse osmosis partition is 1 micron.

disadvantages

• assembled, the dimensions of the filter with a capacity are 47x43x42 cm;
• productivity 130 ml / min.

Atoll A-550m STD five-stage

Rating: 4.7

The filter has five stages, consisting of: a coarse cartridge that retains fractions over 5 microns, a coconut module, a polypropylene flask, reverse osmosis, and a post-filter. On request, a mineralizer with automatic acidity adjustment can be installed in the kit. The liquid temperature at the inlet is allowed from 4 to 38 degrees, and the pressure should not be lower than 2.8 atm.

This is another filter with a storage capacity of 12 liters, which is suitable for a large family. The product loses a little to the competitor described above, since the reverse osmosis system itself will have to be changed every half a year. But the quality of cleaning remains at its best due to the membrane porosity of 1 micron and the similar porosity of the polypropylene filter. Studies show that the ppm of remaining particles in tap water is around 400 ppm. Bottled water is up to 150 ppm. After running the liquid through the Atoll A-550m STD, the remainder will be 35-50 ppm.

Advantages

• you can add a mineralizer with automatic PH correction;
• the water has no specific taste or smell;
• there is always a supply of drinking water of 12 liters;
• reliable crane.

disadvantages

• flasks are connected with a key, which complicates replacement;
• throughput 80 ml / min;
• the service life of a reverse osmosis unit is only 6 months (according to data from the manufacturer's official website).

BARRIER PROFI Osmo 100 five-stage

Rating: 4.7

Here's another worthy contender for the best reverse osmosis filter. The kit performs a five-stage cleaning with coarse filtration (retains rust from pipes, sand, algae). The stream then passes through activated carbon to absorb chlorine and other solutes. After that, a fine cleaning takes place and the liquid enters the capsule with reverse osmosis. At the outlet, the water is re-treated with coal to eliminate the taste, even if it has stood in the storage tank for a long time. Reviews show that no plaque builds up in the teapot when using such water.

The main advantage of the filter is its price, compared to the cost of similar products with equal characteristics. For about 7000 rubles, you get 5 stages of cleaning and the ability to accumulate stock in an 8 liter container. Another differentiating factor is the design life of the reverse osmosis unit up to 5000 liters. If a family of two consumes an average of 1200 liters per year for drinking and cooking, then such a filter will last for 4 years, which also promises savings.

Advantages

• drive for 8 liters;
• the porosity of the filter element is 1 micron;
• easy installation in 30 minutes under the sink;
• no plaque in the teapot.

disadvantages

• productivity 200 ml / min;
• there are no fixing brackets on the fitting, so the tubes are twisted.

Aquaphor OSMO-Crystal 100 version 4 four-stage

Rating: 4.6

The category is completed by a product from “Aquaphor” with a 4-stage cleaning, including reverse osmosis. The filter capacity is 260 ml per minute. Purified water is stored in an 8 liter container. The kit already includes a chrome-plated faucet. The service life of the membrane with water of average quality reaches 1.5 years. In addition to filtration, the unit performs fluid conditioning by saturating it with magnesium. The manufacturer claims that the mineral is well absorbed through water by the body and helps to improve sleep and mood.

The kit with a reverse osmosis module is notable for the ability to replace 3 stages of cleaning with one touch. For this, each capsule is secured through latches. To detach the unit, simply press down on the tab at the top. The installation of a new one takes place simply by lifting the capsule to a characteristic click. This does not require tools and takes about 60 seconds (with a complete replacement of all cartridges at once).

Advantages

• own storage capacity 8 l;
• recommended for children and allergy sufferers;
• easy replacement of components;
• attractive cost.

disadvantages

• productivity 260 ml / min;
• replacement of modules is required every 6 months;
• a pressure of 3.5 atm is required.

The best main water filters with reverse osmosis

This type of filter with a reverse osmosis unit is installed in the pipeline, so all subsequent water is purified. It is practical to obtain potable water at all sampling points. Installations are used both at home and in industrial purposes, in catering establishments, but the cost of such devices is much higher.

RAIFIL RO588W 220 EZ five stages

Rating: 4.9

The favorite of the category is a product from the South Korean company Raifil, which is equipped with two water pumps operating from a 220 V network. This configuration provides accelerated pumping and reverse osmosis filtration with a capacity of up to 1420 l / day. In practice, this means up to 1 liter per minute. The system consists of 5 stages, including a polypropylene cartridge, two filled with compressed carbon and one with granular. To monitor the operation of a powerful device, an analog pressure gauge is provided on the case, displaying pressure up to 20 atm. According to reviews, such a purifier has worked well for preparing soft drinks in bars.

The filter attracted the attention of experts with its resource. Unlike household models, which are capable of high-quality purification of water by reverse osmosis up to 5000 liters, this installation is designed to pass 60,000 liters through itself. The station is also notable for the presence of five reverse osmosis type membranes at once, which increases the degree of liquid purification several times.

Advantages

• pressure gauge for displaying pressure;
• two pumps;
• 5 steps of cleansing;
• long service life of the reverse osmosis unit.

disadvantages

• high price;
• there is no storage capacity included.

Geyser Prestige Maxi 1500

Rating: 4.8

Another main system with carbon filters and reverse osmosis is available from the domestic manufacturer Geyser. Installation “Maxi 1500” is capable of filtering up to 1.04 l / min, which in daily equivalent is 1500 l, therefore, it is ahead of the apparatus from the South Korean manufacturer. The kit is supplied in a single case, where all cartridges, including the reverse osmosis module, are fixed in a frame. The block is made with its own support legs and is easily connected to the mains. The dimensions of the filter are 43x86x27 cm and it weighs 25 kg.

We recommend this product for use in catering establishments or for the manufacture of bottled water, since when calculating consumables, the cost of 1 liter is 30 kopecks. Even the cost of the installation itself is 15,000 rubles cheaper than the South Korean counterpart with equal characteristics.

Advantages

• there are no costs for reagents for regeneration;
• the ability to adjust the ratio of filtered water and drainage is supported;
• pressure gauge on the body;
• quite simple installation in the trunk.

disadvantages

• without storage tank;
• it is not very convenient to change the reverse osmosis membrane itself (located behind the capsules of other stages at the wall).

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Attention! This rating is subjective and does not constitute advertising and does not serve as a purchase guide. Before buying, you need to consult with a specialist.