iSpring 2-Stage Water Filter System Review

You may be confident that your water is pure, but in reality, it contains a lot of contaminants that are harmful to your health and your appliances. The most effective and economical solution to ensure that you get pure water for drinking and other household purposes is to install a whole house water filtration system.

There are a lot of water filtration systems available to buy. If you are planning to purchase iSpring 2-stage water filtration system and want to assess its features and qualities, then you are at the right place. This review will critically analyze all the features of the iSpring 2-stage filter system. We have done considerable research on iSpring, so you are fully aware of its characteristics before buying it.

Let’s have some pure water!

Some Quick Facts

Model: iSpring 2-stage Whole House Water Filtration System

  • Fine Sediment and Carbon
  • Iron & Manganese Removal
  • Lead Removal
  • Capacity: 100,000 Gallon (12 Months for a family of 4) for all variants
  • Flow Rate: 15 Gallons per minute (all variants)
  • Number of Filters: 2
  • Filtration Stages: 2
  • Filter Lifespan: 12 Months
  • Warranty: 30-day return window and 1-year manufacturer warranty
  • Dimensions: 16 x 8 x 27 inches
  • Weight: 40 pounds
  • Wastage: None
  • Color: Black & blue

Now we will review all these features in detail

1. iSpring 2-stage Whole House Water Filtration System

iSpring Whole House 2 Stage Water Filter

iSpring 2-stage filtration system caters to your needs according to the water supply in your area. You can select from the below-mentioned models as per the water quality you are getting.

Fine Sediment and Carbon

What it Filters? iSpring fine sediment and carbon removal system is the most basic model of the 2-stage filtration system. It is perfect to be used in urban areas where water quality is relatively better. It can filter sediments like rust particles, sand, silt, dirt, and dust from your water source. It also removes up to 99 per cent of chlorine, industrial solvents, organic compounds, pesticides, herbicides, bacteria, viruses, and other harmful substances from your water.

How it Filters? The system uses two filters to achieve 99 per cent filtration success. This is a very comprehensive filtration rate as compared to other models. The first filter, made of high-quality coconut shell fibre, sediment filter FP25B filters the sediments in the water and stops them from reaching the next filter. The first step not only filters your water but also prevents CTO carbon filter FC25B from getting clogged. The second filter reduces chlorine and other harmful substances to remove any bad odour from your water.

Iron & Manganese Removal

What it Filters? This variant removes sediments, reduces chlorine and other contaminants as already discussed up to 99 per cent, apart from this it removes iron and manganese to 0.01 parts per million. This model is an upgrade to the previously mentioned model. It retains all the filtration quality of its predecessor and adds the removal of iron and manganese as an enhancement.

How it Filters? The first filter is the carbon block filter (FC25B). In this model, the carbon filter is used as the first filter. The second filter is iron and manganese filter (FM25B) is designed to reduce the amount of iron and manganese in your water. It retains the necessary amount of minerals in water so that water retains its natural properties.

Lead Removal

What it Filters? If your water supply has a high percentage of lead in it, then the iSpring lead removal model is perfect for you. It filters all the sediments from your water up to 5 microns and removes lead by bringing it down to 15 ppb (the EPA standard for drinking water). The system also removes iron, manganese, chlorine, organic compounds, and other harmful elements in your water.

How it Filters? The first filter is the carbon block filter. In the second stage, this model uses lead filter (FCRC25B) for effective lead removal. FCRC25B filter does not only remove lead, but it also works on iron and manganese from your water source. It keeps the healthy minerals in your water.

Filtration Capacity

All three variants offer a filtration capacity of 100,000 gallons of water. For an average American household of 4 people, this water quantity lasts for a year. With this much capacity, you will be able to manage all your water chores with clean and pure water. Your appliances will stay safe, and you will notice that your plumbing fixtures will require less maintenance.

Flow Rate

iSpring offers a high-moderate flow rate of 15 gallons per minute. This flow rate is enough to supply fast water at a maximum of 2-3 points of use. If you are using more than 3 points of use at one time, you may experience a decreased flow rate from your faucets.

Replacement Filters

Filters are reviewed below

1. Sediment Filter – FP25B (For Sediment removal and Carbon)

FP25B water filter

It filters all the sediments in your water like rust particles, dust, silt, and dirt. With a size of 20 by 4.5 inches and power to filter particles as small as 5 microns, it is a very effective filter considering the flow rate of 15 gallons per minute. It is made from food-grade Polypropylene. The filter has a multilayered structure; the first layers filter out large particles. The second layer filters small particles, and the third layer filters micro dust particles to ensure that nothing clogs your next filter.

2. CTO Carbon Block Filter FC25B (For all three variants)

FC25B CTO Carbon Block

This filter is a part of all three models. In the standard sediment removal and carbon variant, it is used as the second filter, and for the other two models, it is used as the first filter. It filters chlorine, organic compounds, industrial solvents, and other harmful substances. It is composed of high-quality performance activated carbon, which makes it more effective in reducing chlorine, odors, and other harmful elements in your water.

3. Iron and Manganese Filter FM25B (For iron and manganese removal model)

iron and Manganese Water Filter

This filter is used for iron and manganese removal and works for around 12-18 months for an average American family. It is made from a high-quality layered structure that helps in enhanced iron and manganese removal.

Lead Removing Filter FCRC25B (For lead removal model): Apart from the carbon block filter, the lead removal model uses FCRC25B for lead removal. It also removes iron and magnesium. It has a lifespan of around 12 months.

Technical Details

All the components in the system and filters are FDA standards approved and NSF/ANSI approved. The peak flow rate is 15 gallons per minute. The minimum and maximum working pressure is 25 psi and 80 psi, respectively, and the system operates at a temperature range of 40-100 degrees Fahrenheit. The inlet and outlet are 1 inch to ensure a smooth flow of water.


Installing this system can be an easy task for you is you know your plumbing fixtures. The user-manual helps in installing. All the components needed to install the system like a metal bracket and wrench comes with the package. A professional plumber can install it in a blink of an eye move.

Cost Analysis

A cost analysis is an essential aspect before buying a water filtration system. Filtration systems usually last for 8-10 years. So you must have an idea of how much you are going to pay on an annual basis. We have estimated the yearly and monthly costs for all the three variants of iSpring.

  • Sediment and Carbon: $66/Year, $5.5/Month
  • Iron and Manganese Removal: $122/Year, $10.21/Month
  • Lead Removal: $175/Year, $14.6/Month

These costs are meagre as compared to the expenses you incur while using a single point of use filters. Changing filters is also a hassle and consumes a lot of time.


  • Very economical
  • Moderate flow rate
  • Easy installation and filter replacement
  • Excellent customer service


  • There may be some leakage after using it for 3-4 years, but you can manage it with Teflon tape.

Our Opinion and Verdict

iSpring 2-stage filtration system is a practical and useful product. It is economical, easy to install, and does what it is supposed to do. We give it a 4.5 out of 5 ratings. You can buy this filtration system to ensure the supply of clean and pre-water to your entire house.

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