[2024 Reviews & Guide] How to Choose the Best Reverse Osmosis System?

Reverse osmosis systems are used in more and more homes to provide quick access to healthy water. If you want you and your family to only drink clean, safe water, then a reverse osmosis filtration system may be your best choice. There are many brands of reverse osmosis systems on the market, so how to choose the best reverse osmosis system is a difficult problem.

In this guide, we’ll walk you through choosing the best penetration system for you.

➢Do I Need to Use a Reverse Osmosis System?

Reverse Osmosis System for home

1) Most households use tap water as direct drinking water. Even if the tap water has been treated and the water quality reaches drinking standards, this does not guarantee long-term drinking safety. If your home has aged pipes that contain lead and iron, the quality of your drinking water will be affected. This eventually leads to problems such as rusty smell in the water, high blood pressure, and kidney disease.

2) Many households face hard water issues due to local water quality issues or the use of well water as a source of drinking water. Long-term drinking of hard water can lead to hair loss, gastrointestinal upset, and dry skin, among other problems. Hard water can also lead to the accumulation of scale, affecting the service life of household appliances.

3) Some remote areas face challenges accessing drinking water, and bottled water is too expensive. Residents can only obtain drinking and domestic water through lakes, rivers, and seawater. However, these incoming water may contain harmful substances such as lead, viruses, organic matter, soluble salts, odors, and bacteria. So installing a reverse osmosis water filter/ultrafiltration filter is crucial to ensure a healthy water supply.

If you are struggling with the abovementioned problems, NEWater recommends investing in a reverse osmosis filtration system to improve water quality. Before purchasing a reverse osmosis system, you can use a TDS water test pen to evaluate your current raw water quality.

➢Reverse Osmosis System Advantages

Multi-level filtering

The reverse osmosis system uses multi-stage filtration, such as 3-stage, 4-stage, 5-stage, and 6-stage filtration, to ensure a thorough purification process. The benefit is to ultimately provide water that meets different levels of high-quality standards.

Effectively remove contaminants

The reverse osmosis system effectively removes almost all impurities in raw water, including heavy metals and hardness, ensuring that the water you drink is cleaner and safer. Learn how reverse osmosis systems work.

Improve sense of taste and smell

The pretreatment system in a reverse osmosis system includes an activated carbon filter and a water softener, which can filter out bad odor pollutants and calcium and magnesium ions.

Better Health

RO filters reduce potential threats to human health by removing heavy metals, chemicals, viruses, bacteria, and other substances from raw water.

Reverse Osmosis System Advantages

Energy Saving and Environmental Protection:

Advanced membrane separation technology in reverse osmosis equipment doesn’t rely on extensive chemical usage. This not only minimizes environmental impact but also reduces operational costs, contributing to energy conservation and environmental protection.

Wide Application

Reverse osmosis technology finds applications across various industries such as electric power, chemicals, electronics, food, and pharmaceuticals. Customizable equipment is available for both industrial and residential needs.
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➢How to Choose the Best Reverse Osmosis System? What Factors Do I Need to Consider?

Choosing the right reverse osmosis system for your home involves considering a few important factors. Here are six steps to guide you in selecting the best reverse osmosis system that truly fits your needs:

1. Budget

$1000-2000 Suitable for beginner users who have never used a reverse osmosis system and are looking for a cost-effective option.
$2500-$3500 It is suitable for users who have a certain understanding of the product and want to update their pure water equipment. Look for a system that is durable and requires low maintenance.
$4000-$5000+ Suitable for users with high product quality requirements and good economic conditions. There are requirements for the multi-function of the system.

2. Parameters

The purified water flow rate is related to the total purified water volume. RO water purifiers cannot look at the purified water flow rate alone. For example, a water purifier has a rated total water purification capacity of 4000L, a purification water flow rate of 5L/h, and a filter element life of 800 hours.

If the total rated water purification capacity of another water purifier remains unchanged at 4000L, and the purified water flow rate is 10L/h, its service life will only be 400 hours. NEWater recommends that when choosing a water purifier, you carefully compare the purified water flow rate and the rated total purified water volume to choose a cost-effective water purifier.

RO System Parameters

It is worth noting that the wastewater produced during the filtration process can also be called “concentrated water” and can also be used for activities such as watering plants or flushing toilets.

3. Filter Element

The correct choice of filter element determines the service life of your water purifier. Here are a few key considerations to consider when choosing a filter.

  • Choose reverse osmosis membranes from well-known brands to ensure quality, such as Dow, Toray, GE, Shihan, Haide, etc.
  • Choose an RO system with a larger rated water purification capacity for better durability and quality.
  • Check your system for additional features such as rolling film technology, multi-film blades, and automatic flushing to ensure protection of equipment life and performance.
  • Replace the filter element when it reaches about 80% of its ideal life.

The cost and price of filter elements are mainly divided into two levels, one is the auxiliary filter element (multi-stage universal filter element, composite filter element) and the main filter element (RO filter element, ultrafiltration element). The price of one liter of water = the price of various filter elements plus cycle ÷ rated water purification capacity.

price of filter elements (1)

Another influencing factor is the number of filtering stages. Generally speaking, the more filtering stages, the better. It does not mean that the higher the price of the filter element, the better the quality and the longer the life. You can choose the most cost-effective filter brand based on specific models and performance.

4. Function Configuration

The functional configuration of the reverse osmosis system mainly includes additional functions and hardware configuration. The hardware configuration is a closed design plus an integrated water circuit board. Additional functions are mainly basic functions such as convenient element replacement and filter element reminder. Others include APP intelligent control, zero stale water, intelligent auxiliary heating, screen display faucet, etc.

5. Classification of Water Purifiers

Understand the general classification of household water purifiers to determine the type that suits your needs.

Classification of Water Purifiers

6. Brand

Generally, the product quality of well-known brands is more guaranteed, but you also need to pay attention to the brand premium. You need to choose a professional water treatment brand with a good reputation in the industry and complete after-sales service.

NEWater, with 20 years of experience in the water treatment industry, is a trustworthy brand. Our reverse osmosis equipment comes with a 2-year quality guarantee, and our engineers, each with over 15 years of industry experience, are ready to address your water treatment concerns online.
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➢Top 5 Best Reverse Osmosis System Manufacturers

Culligan of Rockland (1)

Tankless Reverse Osmosis Filter System

Evoqua Water Technologies LLC ro system (1)

50 GPD Home RO Drinking Water System | 5 Stage RO System

Complete Water Solutions ro system (1)


NEWater ro system (1)

Customizable multi-stage filtration reverse osmosis system

APEC Water System ro system (1)

90 GPD 6-Stage High Output Reverse Osmosis Water Systems for Drinking Water

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➢Features of the Best Reverse Osmosis System

Let’s delve into the features of the best reverse osmosis system and help you make your choice.

  • High Salt Removal Efficiency:

Reverse osmosis technology efficiently eliminates various ions like calcium, magnesium, sodium, and potassium, along with dissolved organic matter and microorganisms in water. This process elevates water purity to a high level.

  • High Degree of Automation:

Most modern reverse osmosis equipment features automated control, allowing for one-button operation for convenient and fast processing. Equipped with online monitoring instruments, it ensures real-time monitoring of water quality changes to guarantee effluent quality.

  • Simple Maintenance:

With a straightforward structure, reverse osmosis equipment is easy to operate and maintain. Daily maintenance is relatively simple, contributing to the overall user-friendly design.

  • Strong Adaptability:

Reverse osmosis equipment demonstrates versatility in handling various water sources. Whether it’s groundwater, surface water, or seawater, it effectively conducts desalination treatment through reverse osmosis technology.

RO system Reduced Operating Costs

  • Stable Operation:

The use of corrosion-resistant and wear-resistant materials, coupled with an optimized structural design, ensures the long-term stable operation of reverse osmosis equipment.

  • Reduced Operating Costs:

Thanks to its low energy consumption and easy maintenance, reverse osmosis equipment significantly reduces operating costs. This cost-effective solution helps companies save resources and streamline their financial expenditures.

NEWater can provide you with reverse osmosis equipment with the above good qualities. We have our factory, and all reverse osmosis equipment has been tested by the quality system and enjoys a 2-year quality guarantee. The NEWater team professionally solves your water problems online. 
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➢About the Filter Element in the Reverse Osmosis System

-Factors Affecting Filter Element Life:

  • Population Size and Water Consumption:

More people in a household means higher water consumption.

Larger populations should pay extra attention to the water purifier’s filter element as it may reach its rated water purification capacity sooner.

  • Water Quality:

Good water quality extends filter element life.

In poor water quality areas, consider replacing the filter element when it reaches 80% of its lifespan.

  • Filter Element Quality:

Better-quality filter elements, especially RO membranes, have a longer lifespan.

Filter Element Quality

-Signs that the Filter Element Needs Replacement:

  • Reduced Water Output:

If water output decreases significantly under the same conditions, flushing the filter doesn’t help.

  • Poor-Tasting Water:

Bad-tasting water may indicate a blocked filter element or saturated activated carbon.

  • TDS Pen Test at 80% Lifespan:

Test the filtered water using a TDS pen when the filter element reaches 80%. If it doesn’t exceed 30, it can still be used for a while.

-Tips for Filter Element Maintenance:

  • Timely Inspection and Cleaning:

Regularly check and clean the filter element to prevent issues.

  • Regular Cleaning:

Establish a routine for thorough cleaning.

  • Use of a Pre-Filter:

Consider adding a Pre-Filter to the system.
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➢Is a Pre-Filter Necessary for a Reverse Osmosis System?


A pre-filter is a front-end filtration device that removes sediment, rust, bacteria, and large particles. It’s cost-effective, reduces impurities, prevents clogging, and protects home appliances.

NEWater strongly recommends using pre-filters for optimal system performance.

Does a reverse osmosis system require a pre-filter
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Frequently Asked Questions (FAQs):

1. How does an RO Water Filtration System Work?

A Reverse Osmosis System essentially incorporates additional layers of protection between water inlets and outlets. These layers, in the form of filters and membranes, permit the passage of clean water while retaining impurities such as solid particles and salts.

The best RO systems may also include features like UV light to eliminate microorganisms or post-taste filters for refreshing water taste.

2. Is Distilled Water better than RO Water?

While distillers and RO filters share a similar function, they operate differently. The best RO systems utilize water pressure and a membrane to filter impurities, providing instant clean water. In contrast, distillers boil water, capture the steam, and condense it back into liquid form.

Both methods are effective, with superiority depending on the impurities you’re dealing with and the intended application, be it commercial water purification or water filtration at home.

3. How long does an RO water filtration system last?

The lifespan of RO systems varies, typically lasting between 2-5 years and potentially indefinitely with proper maintenance. Some of the best reverse osmosis systems from reputable companies, such as NEWater, come with a 2-year warranty, offering insights into their expected duration.

4. Does a Reverse Osmosis (RO) System remove minerals?

Technically, yes. However, this is by design, with the primary goal being to provide clean water. While minerals are removed, it’s important to note that the absence of these minerals in water is far less harmful than consuming water contaminated with heavy metals. When considering clean and safe-to-drink water, RO systems remain among the best options available.

5. Is RO System maintenance cost high?

Most RO systems necessitate an annual replacement of pre-filters and post-filters, while the membrane lasts an average of 2-5 years, contingent on quality, water quality, and usage. Maintenance costs are usually higher for commercial water purification and lower for water filtration at home.

Even for the best RO systems, maintenance expenses pale in comparison to the potential costs associated with healthcare in the event of contracting a waterborne disease, making it a prudent investment in all respects.


If you are choosing the right reverse osmosis system for you and your family, customers, and business, NEWater is a brand you can trust. We can provide you with whole-house reverse osmosis systems, portable solar reverse osmosis systems, reverse osmosis system skids, laboratory reverse osmosis systems, and commercial reverse osmosis systems.

NEWater can help you give you the best reverse osmosis system solution. Our equipment can be designed according to your usage requirements, with multi-stage filtration systems and various capacities to meet your various usage needs.
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