Home Reverse Osmosis Systems For Perfect Filtration Of Drinking Water: Selection Criteria, Features, Characteristics, And Comparison

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The article examines and compares the various types of home reverse osmosis filters for installation under the kitchen sink, their differences and advantages.

In one of the previous articles, we examined various devices and systems for the purification of drinking water. We have come to the conclusion that even “drinking” tap water, which meets basic security standards, must be purified for safe and pleasant consumption.

In another article, it was shown that reverse osmosis filters have the most perfect degree of purification. They filter water slowly but retain not only common impurities but also impurities and toxins dissolved in water. Moreover, the membrane of the reverse osmosis filter traps most biological impurities, such as cholera bacteria, hepatitis viruses, and the Sars-Cov-2 coronavirus. At the exit of the reverse osmosis filter, we get the purest water without foreign smells and tastes. This water is better for your health, it has exceptional taste, clarity, and softness.

Currently, a variety of reverse osmosis systems for home use are produced in the world. They differ not only in the trade name of the manufacturer but also in the characteristics and features of the device. There is no simple answer to the question “Which reverse osmosis filter is better?” since a lot depends on its operating conditions. Therefore, we will try to compare the different types of these filters and find out how to choose the most suitable for each case.

For comparison, we take three different reverse osmosis systems: the classic 10-inch Aquaphor Osmo 50 Classic Trio system, the compact monoblock system Morion DWM 101 S, and the inexpensive reverse osmosis filter Aquaphor DWM 312, which has an original layout and fairly advanced characteristics.

Systems in their original packaging
Aquaphor Osmo-50 Classic Trio vs Morion DWM-101S vs DWM-312

Aquaphor Osmo-50 Classic Trio

Aquaphor Osmo-50 Classic Trio
Aquaphor Osmo-50 Classic Trio

Reverse osmosis system of traditional, time-tested configuration. Removes all types of water contaminants including hardness, bacteria, viruses, nitrates, nitrites, pharmaceutical traces, and any particles down to 0.0005 microns.
Equipped with a 10-liter storage tank and a separate tap (faucet) for clean water.

Has 5 degrees (phases) of cleaning:
1) preliminary mechanical cleaning from coarse impurities, sand, and dirt;
2) preliminary mechanical cleaning from small impurities;
3) fine cleaning with a carbon filter;
4) filtration through a membrane by reverse osmosis;
5) final filtration with a carbon filter or water conditioning with a mineralizing cartridge.

As pre-filters, standard removable modules of the classic 2.5 * 10 inches are used. A typical pre-filter package may include 20 micrometer and 5-micrometer polypropylene filters and a carbon filter such as the Aquaphor 510-07. The frequency of replacing pre-filters depends on the degree of contamination of the source water, on average – about 6 months.
The standard membrane type ULP-50 RO (Vontron ULP1812-50) provides a capacity of 50 gallons (about 180 liters) per day. It is recommended to replace the membrane every 18 months.
A conventional charcoal post-filter or water conditioner (10 “x 2” size, JG connection) requires replacement every 6-12 months.

Aquaphor Classic Osmo Trio reverse osmosis system in the interior
Aquaphor Classic Osmo Trio reverse osmosis system in the interior

Advantages of Aquaphor Osmo Classic:

• Effective pre-filtration.
• Sturdy base for filter housings, which can be placed on a surface or hung on the wall.
• Classic, low cost and widespread 10″ filter cartridges manufactured by many companies around the world.
• Low price with excellent quality and European assembly (150-180 euros).

Peculiarities of Aquaphor Osmo Classic:

Like all systems of this type, for efficient operation, this filtering system requires a stable initial water pressure: 0.34-0.63 MPa (3.5-6.5 bar). If the pressure in your house is below normal, an additional pump should be used, for example, the Aquaphor Water booster pump kit.
The procedure of filters replacement requires disassembling and flushing the filter housings; the procedure for replacing all filters can take an hour or two on average.

Where to buy it?

You can buy Aquaphor Osmo-50 Classic Trio and replacement filters in the ProMarket branded online store.

Update: This model is currently out of stock. However, the online store ProMarket offers two new original models of the classic 10-inch size to replace:

Reverse osmosis filter with pump
Reverse osmosis filter RO 50 with pump

1. Reverse osmosis water filtration system RO 50:
Thanks to the pressure boosting pump, this system can operate with a fairly low pipeline pressure – from 1 atm. The pump is supplied with an electrical adapter and operates on a safe voltage of 24 volts.

RO-C500 direct flow reverse osmosis system
RO-C500 direct flow reverse osmosis system

2. RO C500 direct flow reverse osmosis system:
Thanks to the large membrane, this system produces up to 65 liters of purified water per hour. The high performance of the system allows you to do without a storage tank and use this filter not only for a large household, but also for an office, small bar, or cafe.

Aquaphor Morion DWM-101S

Morion DWM-101S
Morion DWM-101S

The innovative Aquaphor Morion system purifies water as thoroughly as classic reverse osmosis systems and has the same capacity (50 gallons / 190 liters per day). However, this system is less cumbersome. It is made in the form of a monoblock with a built-in storage tank for 5 liters. The system is equipped with a separate tap for clean water.

Drinking-Water Machine DWM-101S (RO-101s) has 4 degrees (phases) of cleaning:

1) preliminary mechanical cleaning from impurities, sand, and dirt;
2) fine cleaning with a carbon filter CFB;
3) filtration through a membrane by reverse osmosis;
4) post-filtration with a carbon filter or water conditioning with a mineralizing cartridge.

For filtration, original replaceable Aquaphor modules (cartridges) are used: usually, those are pre-filters K5 (polypropylene with a porosity of 5 micrometers) and K2 (a combined filter made of Aqualen fibers and natural activated carbon from coconut shells), then RO-50s (K-50s) membrane. A post-filter K7 or a post-filter-mineralizer K7M may be used as a finishing element, combining sorption purification with natural activated carbon with the enrichment of water with useful mineral salts of calcium and magnesium. Thanks to Click-and-Turn technology, Morion cartridge replacement takes seconds and requires no special skills. Replacement intervals are typical: 6 months for pre-filters, 18 months for membrane, and about 1 year for post-filter (water conditioner).

Classic RO system versus Morion DWM-101s reverse osmosis system in the interior
Classic RO system versus Morion DWM-101s reverse osmosis system in the interior

Advantages of Aquaphor Morion 101s:

Easy replacement of cartridges with a Click-and-Turn system. The cartridges are replaced along with their housings. So no flushing of housings required. Thus, human contact with pollution is excluded, to a high degree.
Extremely compact: Morion takes up 50% less space than traditional 10-inch reverse osmosis systems. Dimensions: 42 x 19 x 37 cm (including water tank).
Morion can work under reduced pressure in pipes. Minimum working pressure: 1.86 bar. This is almost 2 times less than that of classic 5-stage systems.
The filter cartridges use proprietary Aqualen and CarboFiber Block technologies, which allow them to work stably for a long time in a more compact size.

Peculiarities of Morion DWM-101S:

The price of the system (275 – 320 euros) is slightly higher than that of classical high-quality reverse osmosis systems.
Only original Aquaphor replacement cartridges can be used in the system; they are a bit more pricey as well.

Where to buy it?

You can buy Morion DWM-101S and replacement cartridges in the ProMarket branded online store, as well as on Amazon (amazon.it, amazon.fr, amazon.de, amazon.es).

Aquaphor DWM-312-12M-S1

Aquaphor DWM-312
Aquaphor DWM-312

The reverse osmosis system Drinking Water Machine DWM-312 (RO-31) is somewhat different from those discussed earlier. A jug made of durable food-grade plastic is used here as a container for drinking water. The volume of the jug is 2.3 liters, which is filled in 15-60 minutes. Thus, there is no need to install a separate tap (faucet), and the space occupied by the system is minimized. At the same time, RO 31 provides the same good degree of purification as other systems considered. The lack of a storage tank allows to reduce operating pressure and increase production to 100 gallons / 380 liters per day.

Like the previous model, DWM-312 (RO-31), has 4 degrees (phases) of cleaning:
1) preliminary mechanical cleaning from impurities, sand, and dirt;
2) fine cleaning with a carbon filter CFB;
3) filtration through a membrane by reverse osmosis;
4) post-filtration with a carbon filter or water conditioning with a mineralizing cartridge.

Aquaphor DWM-312
Aquaphor DWM-312 supplied with a complete set

For filtration, original replaceable Aquaphor modules are used: usually, these are prefilters K5 and K2, RO-100s (K 100s) membrane, and post-filter or mineralizer. Thanks to Click-and-Turn technology, cartridge replacement takes seconds and requires no special skills. The replacement interval is usual: 3-6 months for prefilters, 18 months for the membrane, and 6-12 months for the post-filter.

DWM-312s RO-31 reverse osmosis system in the interior
DWM-312s RO-31 reverse osmosis system in the interior

Advantages of Aquaphor DWM 312:

Easy cartridge replacement with Click-and-Turn System. The cartridges are replaced along with their housings. So no flushing of housings required. Thus, human contact with pollution is excluded, to a high degree.
Extremely compact: dimensions: 27 x 10 x 37 cm, all cartridges are in line and can be hung on the wall of the cabinet under the sink.
The system can operate with a wide range of pipe pressures: 0.15-0.63 MPa (1.5-6.5 bar). Minimum main working pressure: 1.5 bar (22 psi). This is more than 2 times less than classic 5-stage systems, which means you hardly need an additional pump.
The filter cartridges use proprietary Aqualen and CarboFiber Block technologies, which allow them to work stably for a long time in a more compact size.
No need to install a separate tap in the sink. This can be useful if the property is temporary or rented.
The price of the system (130-150 euros) is lower than analogs, despite the use of the same original cartridges.

Peculiarities of DWM-312:

The original design (with a jug in place of a storage tank and a tap) requires careful handling. The instruction recommends, in order to avoid accidental leaks during unattended operation of the filter, to put the jug in a sink or on a surface to drain water.
The relatively low volume of ready-to-drink water is offset by the higher filtration rate. In addition, you can have a second (additional) jug for storing clean water.

RO-312s reverse osmosis system positioning
RO-312s reverse osmosis system water pitcher positioning

Where to buy it?

You can buy DWM-312 and replacement cartridges in the ProMarket branded online store, as well as on Amazon (amazon.it, amazon.fr, amazon.de, amazon.es).

Conclusion

Thus, the choice of a specific system depends on the application, the volume of the water consumption, the pressure in the pipeline, and the availability of installation space.

Aquaphor Osmo-50 Classic Trio vs Morion DWM-101S vs DWM-312 installation scemes
Aquaphor Osmo-50 Classic Trio vs Morion DWM-101S vs DWM-312 installation schemes comparison

For example, if you have a large family and good water pressure in the pipeline, you can opt for the traditional Osmo 50 Classic Trio. Its storage tank will provide an adequate supply of water. And inexpensive replacement filters (especially if you have DIY skills) will make the system very economical to operate.

If your kitchen does not have much free space, the compact Morion system is better suited. Having a modest size, it provides an adequate supply of water. In addition, the system works perfectly with low network pressure. And replacing filter cartridges is quick and easy.

If you have a small family and temporary housing with kitchen furniture, the DWM-312 may be the best option. It takes up a minimum of space under the sink and does not require the installation of a separate tap. At the same time, replacing filters is easy to do with your own hands.
All reviewed systems operate on the same principle of reverse osmosis, which provides the same high quality of purified water as premium bottled water.

Reverse osmosis removes virtually all impurities from water, including hardness, chlorine, lead, other metals, bacteria, and many others. The water becomes clear and soft, allowing you to discover the true taste of coffee and tea. This water is odorless and completely safe even for children and people with allergies. In addition to obtaining ideally pure water, all considered systems also allow you to equalize the pH of the water and enrich it with useful natural microelements using a conditioning module (post-filter).

Of course, a drinking water filter will not turn your tap water into branded mineral or medicinal table water. However, it will successfully replace regular bottled water. At the same time, the cost of a liter of high-quality purified water will be several times less, so the installation of a reverse osmosis system will pay off very quickly. In addition, on-site filtration of water eliminates both the difficulties of its delivery, as well as the need for further disposal of non-environmentally friendly plastic containers.

All these advantages allow us to recommend the installation of a home reverse osmosis system in every home, especially if the quality of the tap water is unstable or causes concern.

This article includes links to the examples of devices, which are discussed, on our corporate website, on Amazon marketplace, and/or online store ProMarket. You may use them if you are interested to get more detailed information or you want to buy something you like with EU delivery.

If you have a related business (for example, a store for household goods and household appliances, a pharmacy, or a business for plumbers), you can offer your customers a new high-quality and profitable product. For wholesale discounts and sales representative deals, please write to ProMarket by email.

http://promarket-eu.com/b2b/index-ferramenta.html
http://promarket-eu.com/b2b/index-pharmacy.html
http://promarket-eu.com/b2b/index-plumber.html

Photos and technical details courtesy of Aquaphor, ProMarket.

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TAGS
AQUAPHOR, CARBON BLOCK, CARTRIDGE KIT, CRYSTAL, DWM-101, DWM-101S, FILTER, FILTER CARTRIDGE, JUG, MORION, OSMOSIS, REVERSE OSMOSIS, UNDERCOUNTER FILTERS, WATER FILTER

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This post is also available in: English Italiano (Italian) Русский (Russian)