Buying Guide: How to Choose Your Home Reverse Osmosis System?



Tap water sometimes contains impurities, heavy metals, or unpleasant tastes. Choosing a home reverse osmosis system suited to your needs can improve the quality of your water for drinking, cooking, your beverages, or even preparing baby bottles.

This guide will help you identify the ideal type of reverse osmosis system for your situation and needs.

Summary Comparison by Category of Home Reverse Osmosis Systems

To begin with, it's important to keep in mind that home reverse osmosis systems come in several categories to meet a variety of needs.

  • Tank-based RO systems: designed to quickly deliver a large amount of filtered water. The purified water is stored in a tank, ready to use at any time. This type is ideal for families or households that use a lot of water every day. Main advantages: immediate flow rate, sufficient capacity for several people. Maintenance is simple, but you need to remember to clean the tank and replace the filters regularly.
    • Faucet-free systems or water dispensers: perfect for those with limited space or an occasional need for filtered water. It can be placed on the countertop or connected directly to the faucet without requiring complex installation. These dispensers are easy to move and offer a practical solution for apartments, offices, or small kitchens. Their flow rate is sufficient for individual daily use, but less suited to high family consumption.
    • Systems with standard filters: The direct-flow RO system produces continuously filtered water, with no tank, which guarantees water that's always fresh and of consistent quality. This system is ideal for those looking for a discreet, modern installation and simplified maintenance. Since there's no storage, there's no risk of water stagnation, and filter replacement stays simple. This type suits people concerned about the quality and freshness of their water, even for regular consumption.
  • Direct-flow RO systems: Some reverse osmosis systems use standardized modular filters, easy to replace and often economical. They're perfectly suited to users who want quick, simple maintenance while still guaranteeing pure, healthy water.
English overview of tank-based, standard-filter, countertop and direct-flow RO systems

Summary Comparison of Our Home Reverse Osmosis Systems

English comparison of 16 home RO systems: flow rate, water waste, dimensions and prices including VAT

Guide to Choosing the Reverse Osmosis System That Fits Your Needs

Home reverse osmosis systems come in several categories to meet a variety of needs. Discover below the type of system best suited to your situation.

1. Reverse Osmosis Systems for Large Families and High Water Use

For households that use a lot of water every day, it's essential to have a reverse osmosis system that can quickly deliver large quantities of filtered water. Tank-based models are perfect in this case, since they store purified water and deliver it immediately, without waiting for filtration time. Maintenance stays simple, but it's important to regularly clean the tank and replace the filters to ensure healthy water.

If you'd like to avoid maintaining your reverse osmosis system too often, or if you don't want water sitting in the tank (risk of bacterial growth) during periods away, we recommend choosing a direct-flow model

Our Reverse Osmosis Recommendations Based on Your Needs

Type Entry-level Mid-range Premium
Tank
Basicos
Price: 199.9€
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Classicos/Deluxos
Price: 319.9€
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Pure Balance reverse osmosis system
Pure Balance
Price: 399.9€
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Direct flow
Optimos
Price: 499.9€
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Beastos
Price: 799.9€
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Olympos
Price: 889.9€
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2. Compact Reverse Osmosis Systems for Apartments or Small Kitchens/Under-Sink

For those with limited space, a compact under-sink reverse osmosis system or a dispenser-type system is ideal. Easy to install, it connects directly to the faucet or fits discreetly under the sink without requiring complex installation. Its flow rate is sufficient for individual or moderate daily use, and its compact size makes it easy to move or adapt to different spaces if needed.

Our Reverse Osmosis Recommendations Based on Your Needs

Type Product Price Link / Discover
Compact direct flow
Picos
399.9 € Discover
Under-sink hybrid + pitcher
Simpleos hybrid reverse osmosis system
Simpleos
299.9 € Discover
RO water dispenser
Mobilos
599.9 € Discover
RO water dispenser
Libertos
799.9 € Discover



3. Simple to Install and Maintain

Some models, such as RO water dispensers or compact under-sink versions, are designed to be installed quickly without major plumbing work. They connect directly to the faucet or only require a simple fitting at the water inlet.


When it comes to maintenance, models equipped with standard filters or modular filters offer real convenience: cartridges are easy to replace, often with a simple clip-in system, with no special tools required. This keeps the water pure and healthy with no technical hassle, even for users who aren't handy.

Our Reverse Osmosis Recommendations Based on Your Needs

Type Entry-level Mid-range Premium
Standard filters
Compactos
Price: 499.9€
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Ecosoft Robustos Mini reverse osmosis system
Robustos Mini
Price: 649.9€
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Dispenser 
Mobilos
Price: 499.9€
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Libertos
Price: 799.9€
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Majestos reverse osmosis water dispenser
Majestos
Price: 999.9€
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Under-sink direct flow
Picos
Price: 399.9€
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Optimos
Price: 499.9€
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Mineros
Price: 699.9€
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4. You Want to Remineralize Your RO Water

It's entirely possible to remineralize water filtered by a reverse osmosis system, to restore essential minerals and improve the taste. Tank-based RO systems, direct-flow RO systems, and standard under-sink RO systems can easily accommodate a remineralization cartridge, which reintroduces calcium, magnesium, and other beneficial minerals.

However, for RO water dispensers, adding a remineralization cartridge isn't possible. In that case, you may need to choose a hybrid model like the Simpleos to get this feature.

To simplify the experience and ensure water that's both pure and balanced, we recommend our Ecosoft remineralization cartridge (10 to 15 mg/l), our Pure Balance remineralization cartridge (from 65 mg/l), or the Mineros model, specially designed to accommodate a remineralization filter and provide pleasant-tasting water every day.

Our Reverse Osmosis Recommendations Based on Your Needs

Type Product Price Link / Discover
Cartridge
Ecosoft Remineralization Cartridge
19.9 € Discover
Cartridge
Pure Balance Remineralization Cartridge
39.9 € Discover
RO system
Mineros
599.9 € Discover