ispring water filters

Best ISpring Water Filter Reviews 2020: Top Picks & Buying Guide

Shopping for an iSpring water filter?

You’ve come to the right place. 

iSpring Water Systems is an American company that manufactures water filters. They are based in Alpharetta, Georgia, where they’ve been operational for around two decades.

iSpring is best known for its high quality and affordable reverse osmosis filters; though they manufacture other filters as well, including faucet, counter-top, and whole house filters.

ispring

High quality: iSpring water filters are reliable and long-lasting. They don’t have the issues you often find in cheaper filters such as leaking, loose parts, and cracking.

Certified: Most of the filters iSpring uses in their systems are NSF-certified to remove various contaminants.

Affordable: iSpring manages to make high-quality filters and sell them at affordable prices. If you find Home Master filters too pricey, iSpring is a budget-friendly alternatively.

Great customer service: Many customers say they got good customer service from iSpring. Whether you have a question, need to replace a broken part, or want to return your filter, they are very helpful.

Warranty: Most iSpring filters come with a 1-year warranty.

Best iSpring Water Filters (Comparison Table)

iSpring WGB32B
  • WGB32B

  • Best whole house filter
  • Type:
    Whole house

  • No. of Stages:
    3

  • Warranty:
    1 year

iSpring RCC7
  • RCC7

  • Best reverse osmosis filter
  • Type:
    Under-sink RO filter

  • No. of Stages:
    5

  • Warranty:
    1 year

iSpring RCC7AK-UV
  • RCC7AK-UV

  • Best RO filter for alkaline mineral water
  • Type:
    Under-sink RO filter

  • No. of Stages:
    7

  • Warranty:
    1 year

iSpring US31 undersink filter
  • US31

  • Best for chlorine/chloramine reduction
  • Type:
    Under-sink

  • No. of Stages:
    3

  • Warranty:
    1 year

iSpring CU-A4 water filter
  • CU-A4

  • Best for lead & arsenic reduction
  • Type:
    Under-sink

  • No. of Stages:
    4

  • Warranty:
    1 year

Best iSpring Water Filters (Reviews)

#1

iSpring WGB32B 3-Stage Whole House Water Filtration System

BEST ISPRING WHOLE HOUSE FILTER

iSpring WGB32B 3-Stage Whole House Water Filtration System

Summary

If you want chlorine-free water from your faucets as well as the showers, a whole house filter is the best and most inexpensive option, compared to installing point-of-use filters for each faucet and shower.

The iSpring WGB32B is one of the best whole house water filters.

It’s meant for use with chlorinated city water.

If you use well-water, either from your own home or community-shared, get the iSpring WGB32BM for iron and manganese removal.

The iSpring WGB32B has three filtration stages.

Sediment filter: Removes rust, dust, and other particulates. This reduces water cloudiness and turbidity and protects other filters from clogging.

Two carbon blocks: The other two filters are both carbon blocks. They remove chlorine, chloramines, and other chemicals from the water.

Depending on your needs, you can always add more stages, such as a UV filter or a lead filter.

The WGB32B filter uses the 20” big blue housings that allow fast flow rate with minimal loss in water pressure. The larger size also results in increased capacity.

The filters last for one year or 100,000 gallons before they need to be replaced.

Installation is straightforward. But you’ll need to buy your fittings. iSpring only provides the filters, a metal bracket for wall mounting, and a housing wrench.

We recommend installing a bypass when you set up the filter. This will make filter replacement easier and ensure water still flows to the house when servicing the system.

Remember that the filter goes on your home’s main water line before it branches to the heater and other areas. If you have a whole house water softener, the WGB32B filter should come before it.

PROS

CONS

Specifications

This Water Filter Is Perfect for You If...

You are looking for an affordable and reliable whole house water filter to remove chlorine and other chemicals from your city water.

#2

iSpring RCC7

BEST ISPRING RO FILTER

ispring rcc7

Summary

A reverse osmosis filter goes much further than a carbon filter in cleaning up your water.

In addition to removing chlorine and various chemicals, an RO filter also reduces microbes, heavy metals, and total dissolved solids.

In other words, an RO filter provides the best protection for your family.

The iSpring RCC7 is one of the best and most affordable under-sink RO filters. It consists of five filtration stages.

Sediment filter: Removes sediment and particulates.

Carbon GAC filter: Removes chlorine, ultra-fine sediment and various chemicals.

Carbon CTO filter: Removes any remaining chemicals, including chloramines, to ensure the water tastes and smells fresh. Along with the GAC filter, the carbon CTO block protects the membrane from damage by chlorine and other chemicals.

RO membrane: The 0.0001 semipermeable is the heart of the system. It removes tough contaminants such as heavy metals, microbes, and dissolved solids.

Polishing GAC filter: A final carbon filter polishes the water to remove any tastes it may have picked up in the reserve tank.

One thing you’ll notice is missing is a mineral filter. Unlike some pricier RO systems – such as the RCC7AK-UV, which we discuss next –the RCC7 does produce mineral water.

If you are used to drinking tap or mineral water, you’ll notice a slight difference in taste. But most people get used to the new taste quickly.

The iSpring RCC7 takes about an hour or two to install under the sink. It comes with everything you need so you don’t need to buy any fittings.

The tubes are color-coded, so you know where each goes.

The filter is rated for a production capacity of 75 gallons per day, which is plenty for most families.

iSpring RCC7 features

PROS

CONS

Specifications

This Water Filter Is Perfect for You If...

You are looking for a high-performance but affordable reverse osmosis filter.

#3

iSpring RCC7AK-UV

BEST ISPRING FILTER FOR MINERAL WATER

iSpring RCC7AK-UV Reverse Osmosis System

Summary

Most people don’t mind the slightly acidic taste of RO water caused by the RO membrane stripping all minerals from the water. After some time, they don’t even notice it.

But if you love the taste of bottled water or tap water, it can be difficult to familiarize your taste buds with the new taste.

We recommend the iSpring RCC7AK-UV. It has a filter that re-mineralizes the water after it passes through the RO membrane.

This improves the taste of water and, in some cases, turns the water alkaline. There’s some evidence that alkaline water is healthier.

The RCC7AK-UV has seven stages in total. Here’s how they are arranged in the order that water flows through them.

Sediment filter: Removes large particulates like sand, silt, and rust that can clog the carbon filters and membrane.

Carbon GAC: Granular activated carbon filters out chlorine and various chemicals.

Carbon CTO: Finer than the GAC filter, the CTO block removes any remnant tastes and odors.

RO Membrane: The 0.0001 semi-permeable membrane removes microbes and TDS, including heavy metals.

Fine GAC filter: Gives the water a final polish to remove all taste and odors.

11 watt UV filter: Sterilizes microbes that manage to pass through the RO filter.

Alkaline Filter: Adds healthy minerals back into the water and restores the water’s pH.

In addition to these filters, the RCC7AK-UV also comes with a 3.2-gallon reserve tank plus all the parts and fittings you need to install the filter.

Installation is a straightforward DIY job. It does take some time, especially the part where you have to drill a hole for the new faucet, but you don’t have to pay a pro.

Color-coded tubes and quick-connect fittings make installation easier.

Like the iSpring RCC, the RCC7AK-UV filter doesn’t have a permeate pump. So it wastes quite a bit of water (3 gallons for every 1 gallon of purified water), and the flow rate is a bit low.

But you can always buy a permeate or booster pump separately and connect it to the filter.

PROS

CONS

Specifications

This Water Filter Is Perfect for You If...

You are looking for an iSpring reverse osmosis water filter that produces mineral water. Also ideal for those who want an RO system with extra UV protection.

#4

iSpring US31

BEST ISPRING FILTER FOR CHLORINE/CHLORAMINE REDUCTION

Summary

If your main concern is the chlorine in your tap water, there’s no need to buy a reverse osmosis water filter.

A cheaper carbon filter will remove the chlorine taste just fine.

The iSpring US31 reduces not only chlorine but also chloramines, an alternative disinfectant used by certain cities.

It has three filtration stages.

Sediment filter: Removes dirt, rust, and sediment.

Two carbon CTO blocks: To remove virtually all the chlorine from water, the iSpring US31 uses double carbon block filters. The resulting filtered water has no hint of the chlorine taste or smell.

If you need to filter chlorine from water for drinking, cooking, pets, or making beverages like coffee or beer, the US31 is one of the most effective filters.

Installation is easy, but it takes some time. Plan to spend at around an hour or two fiddlings under the sink.

Like RO systems, the US31 filter uses a dedicated faucet. If you don’t already have a hole in your sink, you have to drill a new one for the faucet.

Maintenance is also easy. All you need to do is replace the filters when you start tasting some chlorine in your water.

The filters last between 6 and 12 months.

PROS

CONS

Specifications

This Water Filter Is Perfect for You If...

You are looking for an affordable and reliable chlorine/chloramines filter. Also, ideal if you are worried about chemicals such as pesticides and VOCs in your tap water.

#5

iSpring CU-A4

BEST ISPRING FILTER FOR LEAD AND ARSENIC REDUCTION

Summary

If you are worried about lead or arsenic in your tap water, I recommend the iSpring CU-A4 under-sink filter.

The 4-stage filter removes arsenic and leads in addition to the usual bad stuff like chlorine, sediment, and chemicals.

Here are the four stages.

Sediment filter: Removes sand, silt, rust, and other large particulates that can clog the other filters.

Ultra filtration (UF) filter: A UF filter consists of a semi-permeable membrane through which water is forced through, much like an RO membrane. A UF filter is not as effective as an RO membrane, but it removes a lot of stuff that carbon filters let through, including cysts, protozoa, and certain bacteria. It also removes arsenic and lead. Unlike an RO membrane, it doesn’t strip away healthy minerals.

KDF and activated carbon filter: Removes chlorine, chloramines, and various organic chemicals. The KDF media also removes some heavy metals and neutralizes microorganisms. 

Fine activated carbon filter: Gives the water a final polish to remove remnant tastes and odors.

The iSpring CU-A4 is the closest you’ll come to the performance of a reverse osmosis system. The UF filter and the combined KDF and carbon filters are especially good at cleaning up the water.

If you want a system that is almost as good as an RO filter but doesn’t remove the healthy minerals, the CU-A4 filter is a great choice.

Another advantage of the CU-A4 over an RO system is that it is tank-free. It easily fits under a tight under-sink space.

It takes about an hour or two to install, and everything you need is included. The only bit that takes time is installing the air gap faucet. You’ll need to drill a hole for it in your sink if there isn’t a spare one available.

Maintenance is easy. You only need to replace the filters after the recommended period: 12 months for the UF filter, six months for the rest.

PROS

CONS

Specifications

This Water Filter Is Perfect for You If...

You are looking for an under-sink water filter that will remove lead and arsenic from your tap water.

Also ideal for those who don’t have space for an RO system or don’t like the mineral-free RO water. It’s not as good as an RO filter, but it comes close.

iSpring Filters FAQs

reverse osmosis system reviews

Are iSpring filters good?

iSpring filters are some of the best in the market. Problems like leaking and cracking are rare. Most of their filters are NSF-certified, and they come with a 1-year warranty.

What do iSpring filters remove?

It depends on the particular filter. Their reverse osmosis filters remove chemicals, heavy metals, TDS, and most microbes.

Their carbon filters remove chlorine and organic compounds, such as VOCs. They also sell specialized filters for reducing specific contaminants like lead and arsenic.

Can I connect an iSpring filter to my fridge or icemaker?

Yes, but you’ll need to buy extra tubing and connectors.

What’s the warranty on iSpring filters?

Most iSpring filters come with a one year warranty. But you can buy an extended warranty for 3, 5 or 10 years.