iSpring Water Filter Reviews (2024): The Best Water Filters For Your Home

Updated on:
January 8, 2024

If you still haven’t heard of iSpring water filtration systems, it’s time to wake up.

iSpring has been creating water filtration systems for 20 years and consumers have been enjoying its filtration products since the day iSpring unveiled its very first water filter.

I’ve spent months testing, analyzing, and researching the best water filtration systems on the market so you can make the right decision for your home. Here’s what I learned about iSpring:

Who Is iSpring?

iSpring was founded in 2005 by a small team of water filtration enthusiasts. Its main headquarters is located in Atlanta, Georgia. Since its inception, iSpring has strongly focused on manufacturing top-tier and affordable filtration systems that produce the cleanest and healthiest water for residential and commercial applications.

This company specializes in DIY installations, making it easy for customers to install and maintain the units themselves. But the most important goal that iSpring strives toward is minimizing the environmental impact of plastic water bottles by introducing long-lasting, high-quality, and budget-friendly water filters.

iSpring offers a wide range of commercial and residential water filtration solutions to over 20 countries. Its vast catalog of 50,000+ products showcases the finest reverse osmosis systems, countertop filters, under-sink filters, showerheads, water dispensers, car wash systems, and faucet-mounted filters.

iSpring provides excellent warranties and money-back guarantees. Learn more on the iSpring website.

iSpring Water Filters Reviews

After consulting professionals and analyzing customer feedback for four months, I have picked the best iSpring filtration systems in terms of performance, durability, cost, and maintenance, for each of the following categories.

  • Whole-house filtration systems
  • Under-sink filters
  • Countertop filters
  • Faucet filters
  • Refrigerator filters
  • Shower filters

This iSpring review will help you understand the brand better and the unique features they offer so you can make the right decision for your home.

When you’re ready, let’s dive right in.

Whole-House Filtration

iSpring WGB32BM Whole House Water Filtration System: $516.99

The mighty iSpring Whole House Filter combines three different technologies to remove silt, sand, rust, chlorine, organic compounds, pesticides, herbicides, iron, and manganese from private well water or city water supply.

This filter is a beast when it comes to reducing the concentration of iron and manganese in both dissolved and undissolved states and reducing the scale buildup in your sinks and fixtures.

Equipped with a flow rate of 15 gallons per minute (GPM), the iSpring whole-house filter will supply fresh water to your taps, showers, and laundry machine without any dips in pressure. 

How does it work?

The first stage of this filter uses a 5-micron polypropylene sediment filter cartridge to capture debris, silt, and dirt particles. Other pollutants that can’t flow past this stage include insoluble ferric iron and manganous manganese particles.

The second stage is responsible for making your water taste delicious using an efficient carbon filter made of coconut shell. The catalytic surface of carbon traps chlorine, chloramines, trihalomethanes, and any other pollutant that is responsible for cloudiness and bad odor. These filter cartridges have a high-water capacity of 100,000 gallons and will last around twelve months.

The third and last stage features a catalytic greensand filter that tackles up to 3 PPM of iron and manganese in soluble forms, bringing down their concentration levels to 0.01 PPM. This filter is capable of filtering 50,000 gallons and may last for six months, depending on your water quality.

One major highlight of this whole-house water filtration system is that the filter lasts three times longer than average greensand filters on the market. Unlike typical greensand filters, the iSpring greensand filter is not consumed during water filtration, saving you the money that goes into frequent regeneration of the greensand media.


  • Meets NSF/ANSI standards
  • Commercial-grade body and sturdy components
  • Long-lasting filter
  • Easy filter replacement


  • Complicated installation may require professional help
  • Doesn’t remove total dissolved solids (TDS)

Under-Sink Filtration

iSpring RCC7AK-UV Undersink Reverse Osmosis System: $339.99

Imagine drinking water that passes through seven stages of filtration, taking out every last contaminant and restoring essential minerals. Sounds refreshing, right? The iSpring Under-Sink RO Filter does that.

This high-capacity under-sink filter is equipped with an ultraviolet lamp along with a reverse-osmosis membrane that kills and captures bacteria, viruses, protozoa, and other germs lurking in your drinking water.

On top of its super-efficient filtration, you can easily install it yourself by following the instruction manual or YouTube tutorial videos. It took me, a not-so-handyman, just twenty minutes to get this filter up and running.

How does it work?

The water first passes through three pre-filters—sediment, granular activated carbon, and carbon block filters—which remove dirt, silt, debris, chlorine, trihalomethanes, asbestos, and some minerals, including calcium, fluoride, and sodium. This step clears the water of any pollutants that could clog the following RO membrane.

The next step is the heart of the system—a reverse osmosis filter with 0.0001-micron pores that trap bacteria, viruses, iron, magnesium, lead, arsenic, sulfide, and other minerals in the water. It is also NSF 58/ANSI certified for TDS (total dissolved solids) reduction. 

Water coming out of this stage is already so clean that you could drink it, but iSpring makes it even better by adding a remineralization filter. An alkaline remineralization filter is responsible for adding minerals to water and restoring the alkaline balance that gives the water a refreshing taste.

There’s still more.

The last stage is where your squeaky-clean water passes through an 11-watt UV lamp that kills any remaining bacteria and viruses.

I don’t want to exaggerate, but drinking this water made me feel on top of the world.


  • RO filter lasts up to two years
  • Filters 75 gallons of water daily, perfect for medium to large households 
  • Transparent container helps track replacement needs
  • Sleek silver faucet included 
  • Remineralization
  • Easy installation


  • Needs to be flushed at least three times before using

Countertop Filtration

iSpring CT10 Countertop Water Filter: $76.99

This compact countertop filter features multiple filtration layers within a single cartridge, removing various contaminants while saving the space used by multiple cartridges. The iSpring CT10 is effective against sediment, chlorine, and VOCs, along with atrazine, asbestos, and iron.

The filter comes with a versatile faucet adapter that can attach to any faucet in just a few minutes. Yes, that’s how long this filter takes to start filtering your water.

With a decent life of 4,000 gallons, this filter is the highest-performing countertop filter on the market right now.

How does it work?

The water first passes through the two layers of sediment filter, an activated carbon filter, and the KDF media, which trap solid particles, chlorine, hydrogen sulfide, VOCs, lead, and other heavy metals in the water.

The last layer in this cartridge features a calcite filter media (a mixture of calcium carbonate and magnesium carbonate), which neutralizes the acidity and corrects the pH of your drinking water before it comes out of the tap.


  • Compact design that makes it easy to install in RVs, dorms, or other small spaces 
  • Easy installation 
  • Great for renters
  • Sturdy


  • Small filtering capacity
  • Doesn’t work with pull-out or pull-down faucets
  • Not suitable for high concentration of iron 
  • Doesn’t remove microbial contamination

Faucet Filtration

iSpring DF2-CHR Faucet Water Filter: $30.99

This faucet-filter model out of iSpring’s DF1/DF2 series can filter your water every day for over six months without needing a filter replacement. You can use it in your kitchen, bathroom, or any other tap for instant filtered water. 

The iSpring DF2-CHR faucet filter features a sleek chrome plated body that doesn’t require any tools to install onto your faucets.

The DF2’s 1.5 GPM flow rate can fill about ten small bottles in under sixty seconds. With a high filtering capacity of 500 gallons, roughly equal to 3,000 standard water bottles, the iSpring faucet-mounted filter might just be what you need.

One small caveat? If you have fancy and unconventional faucets in your home, like hand-held or pull-out designs, this filter will not attach.

How does it work?

This model uses a patented combination of filter media that takes out chlorine, hydrogen sulfide, lindane, atrazine, and lead from the tap water giving it a fresh smell and delicious taste. It is best against the chlorine smell lingering in the city water supply due to frequent chlorination in treatment plants.

According to test results on the website, this filter does a splendid job cleaning out chlorine and lead from water but an average job at taking care of hydrogen sulfide. So, if your water is reeking of rotten eggs, this filter will only help to a certain extent.  


  • Robust BPA-free plastic casing
  • Easy to set up anywhere from your kitchen taps to RV sinks
  • 1.5-GPM flow rate

Last longer than typical faucet filters at 6–8 months


  • Doesn’t fit high-end or specialty faucets
  • Localized filtering capacity
  • Can’t remove hydrogen sulfide
  • Can’t remove heavy metals except lead

Refrigerator Filtration

iSpring ICEK-FT15 Refrigerator Filter: $39.99

If you need tasty water straight out of your fridge, I have a great suggestion: iSpring’s Universal Refrigerator Filter. This sediment filter removes dirt, debris, silt, and other sediment, as well as chlorine and lead. It’s about time you replace that old filter that came with your fridge when you bought it.

I’ve been a big fan of it since the day I hooked it up to my refrigerator and even decided to keep it after I was done with my analysis. It produces crystal-clear water and tasty ice cubes that I can chew on (don’t judge me, please).

It comes with proper connectors and tubes as well as a guide to connect it to refrigerators without a hassle. You won’t need to call a specialist for this job.

One thing to note here is that this filter is more suitable for acidic water. If your water is hard and has a high pH, you might want to go for the iSpring FT15 filter that doesn’t include an alkaline filter.

If you’re a sucker for crystal-clear ice cubes, you can get iSpring’s ice maker kit along with this filter to feed the filtered water to your refrigerator.

How does it work?

This unit features two stages of filtration.

First is an inline carbon filter that removes chlorine, improves taste, and clears your water of any odor-causing pollutants.

The second stage is an alkaline filter made of calcite and corosex that neutralizes the acidity of water by slightly raising its pH.


  • Great at removing chlorine odor and bleachy taste
  • Neutral or alkaline pH makes your water taste fresher
  • Easy to install


  • More suitable for acidic water
  • Clogs up with dirt quickly
  • Requires replacement once every six weeks

Shower Filtration

iSpring SF3S Shower Filter: $24.99

This model from the iSpring SF series of shower filters features a 15-stage cleaning process that removes many contaminants, including dirt, silt, chlorine, hydrogen sulfide, and heavy metals.

What I love about this filter is that out of the fifteen layers inside the filter casing, one layer is responsible for adding vitamin C to your water to improve the bathing experience.

This filter fits easily and doesn’t require any special tools for installation. It took me fifteen minutes to unpack and install it on my showerhead.

At such a small price, this filter offers a long life of 6–8 months, which means you can take restful, “Hollywood showers” almost 900 times before it’s due for a replacement.

How does it work?

Out of the 15 filtration layers inside this filter, a few are responsible for filtering out solid particles, debris, rust particles, soil, and sediment. These include sand filters, polypropylene cotton, and high-density stainless steel meshes.

Other layers include a carbon filter, KDF media, and Maifan balls that remove chlorine, hydrogen sulfide, and some heavy metals from water.

The rest of the filter layers are responsible for adding beneficial minerals and oxygen and balancing the pH of the water.

All of these layers ensure the water released from the shower is free of dirty contaminants and full of healthy minerals needed for a refreshing bath.


  • No change in water pressure
  • Adds vitamin C
  • Good at removing chlorine
  • Affordable


  • Short life-span with high levels of contaminants
  • Best suited to low amounts of contaminants
  • Besides chlorine, filtering performance inferior to whole-house systems

The Bottom line

Started from humble beginnings in 2005, iSpring has grown into a renowned global provider of high-quality filtration systems and has several NSF and CEC certifications to back its products.

The iSpring mission is to manufacture affordable water filters for both private wells and city water supply without compromising durability, quality, or performance.

No matter your family size, budget, and level of contamination in water, iSpring surely has a solution for you up its sleeve.  

On top of it all, iSpring has one of the best customer service departments on the market. You can access free technical support and installation guides round the clock.

Feel free to explore iSpring’s whole-house water filtration systems, reverse osmosis systems, and under-sink and countertop filters. If you need more information, pick up your phone and give them a call right now.

iSpring Filters Research Methodology

Writing well-researched reviews for iSpring filters needed extensive research. So, in this section, I’ll outline the steps of my research methodology that helped me analyze these products. 

Step 1: A list of iSpring filters 

I already had a pretty good idea about the iSpring market since I live in Georgia, where the company has its main manufacturing plant. I browsed online e-commerce stores for iSpring water filters in different categories. I noted two to three varieties of iSpring water filters under each category in my list.

Step 2: Product analyses

Since there are tons of filters out there with numerous features, I needed some kind of scoring system to evaluate each one. 

First, I divided the products into six categories: whole-house, countertop, under-sink, showerhead, refrigerator, and faucet-mounted filter systems. After that, I looked for the following things in each filter type.

  • Target contaminants
  • Filter technology
    • Reverse osmosis system 
    • Carbon filters
    • Sediment filter
    • UV filter
  • Filter life
  • Certifications 
  • Flow rates 
  • Easy installation
  • Warranty 

Step 3: Online reviews

Next, I looked for online reviews by verified customers on various platforms like Google, Amazon, Trustpilot, Angie’s List, and TestFreaks. I ignored the reviews on the company’s website because there was no sure way to confirm their authenticity. 

I found some great insights about the products and noted some common issues customers had with iSpring water filters. 

Step 4: Interviews with real customers

For further scrutiny, I decided to interview real customers one on one. It wasn’t easy at first, but I managed to locate iSpring filter users in my city using an online ad. Thankfully, many people were happy to share their experiences. By knowing what works and what doesn’t for these folks, I had a better understanding of filtration systems. I included all this information in my final ranking. 

Step 5: Interview with iSpring

I figured getting only one side of the story wouldn’t be fair. So, I contacted iSpring and asked them about any recurring complaints the customers had shared with me. I also had a few queries of my own related to the certification. Surprisingly, the customer service was really helpful and cleared up all my doubts. 

Step 6: Test drives

Finally, I needed some of my own tests to really find out what these filters were capable of. So, I rented several water bowsers and put together a small testing rig for the experiment. It took me two weeks to run all the water filters and evaluate their results. 

I took samples after regular intervals and tested them for lead, chlorine, fluoride, sulfur, bacteria, sediment, iron, organic matter, pesticides, and heavy metals. Surprisingly, all the filters performed exceptionally well for their categories, especially compared to similar filters from other brands.

The process was tedious, but it was worth it. All the filtered water was recycled and put to good use afterward. 

Step 7: Ranking 

Once my testing was complete, I had a holistic performance overview of all iSpring water filters on my list. The filters with the highest score in each category made the final cut.

I combined all the ranking factors and sorted all the products based on the following aspects: 

  • My test results
  • Equipment cost
  • Cost of replacement filters
  • Filter life and ease of installation 
  • Authenticity of certification
  • Steady flow rate
  • Customer reviews
  • Customer service
  • Product warranty

It wasn’t easy, but this helped me sort out the best iSpring filter options available for you to choose from. 

Final Thoughts

After four months of meticulous research, interviewing customers, talking to plumbing contractors, and testing the units myself, I can confidently say that iSpring water filters are indeed one of a kind. 

It’s true that iSpring’s top-of-the-line water filters stack up well against the competition in terms of longevity, cost, certifications, flow rates, and performance.

Hopefully, my review will help you save the time on the legwork that goes into making the right decision. Until next time!

If you’re looking for reviews on water filters other than iSpring water filters, you’ve come to the right place! Our comprehensive collection of water heater reviews covers a wide range of brands and models available on the market.

Here are some of the water filter brands and models that we have extensively reviewed:

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