iSpring Reverse Osmosis Vs Express Water

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There are plenty of players in the world of water filtration and purification, with brands like Waterdrop, Aquasana, and Apec, among others.

And all these competitive companies manufacture high-quality products, which can make it hard for you to settle for one.

In this guide, we compare two major leading brands in the water purification industry, i.e., iSpring and Express Water. We will go through the similarities of their products as well as the differences to help you make a wise decision on the brand to get your products from.

Comparing iSpring and Express Water Reverse Osmosis

FeatureiSpring Water Filtration SystemsExpress Water Water Filtration Systems
DesignColorfulMore colorful
Water production capacityHigh water production(some systems produce up to 500 GPD)Low water production (maximum 100 GPD)
Flow rateHigh water flow rateLower water flow rate
PriceExpensiveReasonably priced
Warranty1-year manufacturer warranty with an extended 3-year,5-year, or 10-year extended warranty as a gift or purchase.1-year manufacturer warranty.

About iSpring ‎Water Systems

iSpring Water Systems is a leading water filtration company specializing in creating reliable and efficient clean water solutions for residential and commercial needs.

The company has been in operation for more than 2 decades and is located in the Greater Metro Atlanta.

Their mission is to make clean and safe water accessible to all consumers while reducing the impact of plastic waste.

Their products include commercial and residential RO systems, countertop water filters, whole house water filtration systems, under sink filter systems, and ultrafiltration systems.

They also make consumer products like faucets, shower filters, filter cartridges, and connector fittings.

Express Water Brand Overview

Express Water is a water filtration company based in North Hollywood, California, in the USA. The company was started with the goal of taking on-demand clean water to people’s homes.

Over the years, they have made the vision real for hundreds of thousands of consumers.

The company focuses on easy-to-install systems that can handle all your drinking water needs. And should you feel dissatisfied with their system, you can return it for a full refund anytime in the first 30 days.

Their products include reverse osmosis systems, whole house systems, water softeners, filters, accessories, and part products.

iSpring vs. Express Water: Similarities

Build Quality

You can rest assured that the quality of iSpring and Express Water systems is top-notch. This is because they are NSF certified, which guarantees the effectiveness and durability of their build quality.

To verify this, you can check their products’ components. The tubing and housing are high-grade hence long-lasting.


Most iSpring and Express Water RO systems have varying NSF/ANSI certifications for their filtering performance.

Some units, like the Express Water Elite, is NSF 42 certified, meaning that it can remove aesthetic impurities like flavors and aromas caused by chlorine.

Others, like the iSpring RCC7, are NSF/ANSI 58 certified as a guarantee to filter known harmful water contaminants.

These certifications prove that iSpring and Express Water filtration systems are incredibly thorough.

Contaminants Removed

Water filtration systems from both brands remove a wide host of water contaminants. Some of the pollutants include chlorine, lead, arsenic, fluoride, sodium, and more.

The systems convert your dirty water into clean, safe, healthy drinking water.


Systems from both brands come with a range of components. Some of the components include a faucet, filter set, water storage tank, feed valve, and toolset, among others.

The components make installation of the water filtration systems easy. However, it’s important to note that different systems come with different components.


iSpring and Express Water have gone out of their way to ensure that their systems are easy to install.

The components for their water filtration systems are simplified as much as possible to make the installation process easier.

Additionally, most come with an instruction manual with simple-to-follow steps for reference. Therefore, with little DIY skills, a wrench, and a drill, you should be able to set up any of their systems in an hour.

Filter Replacement

Filter replacement is quite easy for systems of either brand. And it’s not a weekly routine. Some filters, like the sediment pre-filter, require replacement every six months, while an RO filter membrane can go for up to 3 years without replacement.

iSpring vs. Express Water: Differences


iSpring and Express Water water filtration systems come in different designs, with the latter’s models being more colorful. The unique colors not only make the units look great.

iSpring models also come in unique designs. Some units feature a transparent casing to help you inspect the sediment filter and tell when it’s time for filter replacement.

Production Capacity

iSpring Ro systems have a larger water capacity, with some producing 500 gallons of water per day and a minimum of 75 GPD. One would fit your home perfectly if you have a large family.

Most Express Water systems have a capacity of 100 gallons per day. There are those that feature a small water capacity of 50 gallons per day. This makes the brand’s systems the best for individuals with small families.


Of the 2 brands, Express Water has the most affordable products. Their systems have a price range of between $100 and $500.Most are within the range of $150 and $250.

Although some iSpring systems are reasonably priced, most come with a high price tag. Some tankless units come at a price of more than $600.

To get a commercial 4-stage RO system from iSpring, be ready to part with more than $1,000.


Both brands offer a 1-year warranty effective from the day of original purchase. Additionally, iSpring offers a 3-year, 5-year, or 10-year extended warranty as a gift or for purchase.

Express Water warranty covers defects in the parts or manufacturing of all products. They give new replacement parts in exchange for all defective parts. This, however, doesn’t apply to filters or membranes.

Frequently Asked Questions

Q. Can I use iSpring and Express Water systems to filter well water?

Yes, you can. However, you need to ensure that you get a unit that can filter well water since not all call. Check for one that comes with a UV stage to kill bacteria and viruses that might be present in the water.

Q. What is the lifespan of iSpring filters?

For most RO systems, filters usually last 6 to 12 months and the reverse osmosis filter mebrane 2 to 3 years. However, this depends on the quality of your water and usage.

Q. Do I need a booster pump for my iSpring and Express Water RO systems?

If the pressure of the incoming water is below 45 psi, you need to get a booster pump. Low water pressure will make the system inefficient, leading to more wastewater.

Q. How long do reverse osmosis tanks last?

If properly maintained, an RO tank can last up to 10 years.

Q. Can I install an iSpring or Express Water water filtration system myself?

Yes, you can. Even with zero DIY skills, the brands’ units are extremely easy to install.

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Dr. Peter Gleick

Dr. Peter Gleick is an experienced water filtration engineer and technical writer for He is an expert in water purification and filtration, focusing on helping people get clean, safe, and healthy water for domestic use. He has more than 10 years of writing experience and has numerously contributed to leading publications in this field.

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