5 Best Whole House Water Filters for Well Water in 2021 Review

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Do you know that water from your tap or fixtures may be impure despite passing through a water treatment facility?

The reason is that water may pick up polluting substances after it has left the water treatment plant. The situation is the same if the water is stored in a private well.

In such a situation, it’s high time to use the best water filters. For everyday household uses, you need a lot of water. So, dealing with individual filters is a hassle.

What’s the solution of this?

The best whole house water filter is a life saver!

Yes, a whole house water filtering system treats the water source at the point of entry. That way, it ensures every faucet, appliance and person in your family is getting clean, healthy, high-quality water.

In this whole house water filter reviews, we try our best to offer you the best models on the market up-to-date.

Read along!

Top Picks Comparison Chart

Short on time? Here is the quick chart of the 5 best whole house water filter for hard water. Check it out below.

Best Extended Protection
Express Water Heavy Metal Whole House Water Filter – 3 Stage Whole House Water Filtration System – Sediment, KDF, Carbon Filters – Includes Pressure Gauges, Easy Release, and 1” Inch Connections
Best Performance
Aquasana Whole House Water Filter System - Filters Sediment & 97% Of Chlorine - Carbon & KDF Home Water Filtration - 6 Yr, 600,000 Gl
Filtersmart Whole House Water Filter System & Salt Free Water Softener Combo, Filters Chlorine & Sediment Filtration for 1-3 Baths, 12 GPM, 1 Million Gallons
Aquasana Rhino Whole House Water Filtration System (300,000 Gal Plus Water Descaler)
Best Quality
3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP903, Reduces Sediment, Chlorine Taste and Odor
100,000 or 6-12 months
600,000 or 6 years
1,000,000 or 5 year
300,000 or 3 years
Flow Rate(GPM)
Not mentioned
Chlorine Reduction
Not specified
Best Extended Protection
Express Water Heavy Metal Whole House Water Filter – 3 Stage Whole House Water Filtration System – Sediment, KDF, Carbon Filters – Includes Pressure Gauges, Easy Release, and 1” Inch Connections
100,000 or 6-12 months
Flow Rate(GPM)
Chlorine Reduction
Best Performance
Aquasana Whole House Water Filter System - Filters Sediment & 97% Of Chlorine - Carbon & KDF Home Water Filtration - 6 Yr, 600,000 Gl
Product Name
600,000 or 6 years
Flow Rate(GPM)
Chlorine Reduction
Filtersmart Whole House Water Filter System & Salt Free Water Softener Combo, Filters Chlorine & Sediment Filtration for 1-3 Baths, 12 GPM, 1 Million Gallons
1,000,000 or 5 year
Flow Rate(GPM)
Chlorine Reduction
Not specified
Aquasana Rhino Whole House Water Filtration System (300,000 Gal Plus Water Descaler)
300,000 or 3 years
Flow Rate(GPM)
Not mentioned
Chlorine Reduction
Best Quality
3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP903, Reduces Sediment, Chlorine Taste and Odor
Flow Rate(GPM)
Chlorine Reduction

Here Are the Best Whole House Water Filters for Well Water in 2021

There are hundreds of options in the market. So, lots of people always strive to purchase the right home water filter.

To make things easier on you, we’ve vigorously tested several models and finally shortlisted 5 best options. These are best in the quality-to-price ratio. So, you can pick them confidently according to your needs.

Let’s find what these water filtration systems offer to you.

1. Express Water WH300SCKS – Heavy Metal Whole House Water Filter

Key Features

  • 3 stage home water filtration
  • Sediment-, KDF – & activated carbon block filter
  • Specially engineered fast flow filtration
  • 100% food-grade materials made housing
  • Drop-and-go filter design
  • Meet NSF / ANSI standards

The Express Water WH300SCKS is the complete solution for your home filtration. It’s one of the best rated whole house water filters available.

But what makes this heavy metal whole house water filter so unique?

WH300SCKS comes with several unique features that make this system special.

Firstly, it’s specially designed to save you time and money.

YES, you’ve heard that right.

The high capacity filters provide you clean, fresh water for your entire home with no pressure loss. Moreover, the filters don’t send any water down the drain.

Furthermore, the simple, efficient design allows you to change the filter quickly and easily. Thanks to its smart drop-and-go filter design.

For added convenience, it includes three pressure gauges that let you monitor the system’s performance. It also enables you to know which filters you need to change and when to change them.

Of course, the translucent 1st stage filter housing confirms when the filter requires replacing without dismantling the system.

Great, isn’t it?

Each housing construction is of high-quality 100% food-grade ABS and PCE plastic that makes it last longer than many counterparts.

Importantly, all components are tested to meet or exceeds the standards set by NSF/ ANSI. Moreover, the housings are fitted to durable stainless steel freestanding mount.

So, what about its filtration stages and performance?

This unit comes complete with three filters that includes sediment-, kinetic degradation fluxion-, and activated carbon block filter.

This 3-stage filter is capable of removing major contaminants from the water source. It also removes cloudiness, odors and inhibits the growth of microorganisms. And it does it jobs without lowering your home’s water pressure.

With a high flow rate, it can supply up to 0.25 gallons of water per second.

In summary, the Express Water whole house water filter is significantly worth to purchase when it comes to a comprehensive “point of entry” 3- stage filtration and efficient performance.


  • Durable and heavy-duty
  • Fast flow rate
  • Simple to set up
  • Easy to use and efficient
  • One-year warranty on the Systems and free lifetime support


  • You should use it in a dry level area protected from direct sunlight and freezing temperatures.

2. Aquasana EQ-600-AMZN – High-performance

Key Features

  • 2-stage filtration
  • Sediment pre-filter
  • Activated carbon filter
  • Dual tank design
  • NSF certified

If you’re looking for a high-performance whole house water filtration system, don’t miss Aquasana EQ-600-AMZN.

This system is full of features that make this house water filter apart from the rest of the others.

Aquasana EQ-600 ensures healthy and great-tasting water from every tap in your home. Undoubtedly it is a solid piece of the home water filter.

EQ-600 is incredibly useful to filter up to 600,000 gallons of water or 6 years. This unit can filter out 97% of chlorine. It also reduces most of the pollutants like mercury, lead, pesticides, herbicides, VOCs and more.

Moreover, it inhibits algae and bacteria. Of course, you won’t get any unpleasant taste in the filtered water.

And this 2-stage filtration system uses sediment pre-filter and activated carbon filter to reduce contaminants while leaving healthy minerals in your water.

Notably, the smarter design of this system maximizes filtration with minimal maintenance. The unique up flow and dual-tank design not only effectively clogging but also increase water contact time with contaminant- grabbing media.

Also, the unit is easy to use. The filter and tank-design are easy and quick to replace.

The filter comes along with 10-in—pre-filter, fittings, post-filter, couplings (for 0.75-inch pipe fittings), and valve.

In essence, the Aquasana EQ-600-AMZN is a remarkably economical water filter for most households.


  • Smarter design
  • Top-notch components
  • Cost-efficient
  • Long-lasting performance
  • No back flushing or draining needed


  • PEX tubing not included
  • Not effective for well water with iron
  • Somewhat expensive

3. Filtersmart FS-FS-12 – Best Whole House Water Filter System & Salt-Free Water Softener Combo

Key Features

  • Sediment pre-filter
  • Premium NSF certified coconut shell carbon filter
  • Simple in-out design for easy installation

Want to replace your salt-based water softeners?

Then Filtersmart FS-FS-12 is an excellent option to filter your home water without using harmful sodium or salt.

FS-FS-12 is a salt-free anti-scale filter system plus a softener combo that requires no electricity or salt replacement.

The result?

Zero maintenance! Zero water wastage!

And no more limescale build-up in faucets, plumbing, and appliances! As it uses the anti-scale media that suspends hard water particles.

It doesn’t need to add or remove anything from the water making it a more environmentally-friendly option. With the up-flow design, there is no need for a drain or electrical hookup and no backwashing.

Importantly, it retains the essential naturally occurring minerals, especially magnesium and calcium in filtered water.

The unit uses sediment pre-filter to remove silt, fine rust and debris from the water source. Then, in the second stage, it uses the exclusive Granulated Activated Carbon technology.

It removes chlorine, VOCs, chloramine, pesticides, herbicides, industrial solvents and much more. Thus it improves the overall taste and smell of the water.

It’s worth noting that this NSF certified carbon filter has the maximum capacity of 1,000,000 gallons or 5 years for filtering.

Nevertheless, this product is almost maintenance-free. You may need to change the pre-filter every 8 to 10 months. Moreover, the simple in/ out design makes the installation process convenient and straightforward.

Although this combo is highly expensive, it’s worth every penny because of its capabilities. If you can afford it, we highly suggest you invest in this best water purification system.


  • Provides spring-like water- full of natural minerals
  • Healthier than salt-based filtration systems
  • 100% maintenance-free
  • Cost-effective and eco-friendly


  • High-price tag
  • Not recommended for well water with hydrogen sulfide, iron, or manganese.

4. Aquasana Rhino SimplySoft

Key Features

  • Unique up-flow, dual tank design
  • Sediment pre-filter
  • Copper-zinc and mineral stone filter
  • Activated carbon filter
  • System tested and certified by NSF

Here is another excellent salt-less whole house water filtration system.

Aquasana Rhino is more than just a water softener.

I’m not exaggerating.

In the units without SimplySoft, corrosion and scale can build up in the appliances and plumbing. But this is not the case for the water filter with SimplySoft

Aquasana Rhino uses the revolutionary SimplySoft technology that makes it eco-friendly. This technology is tested and proven to reduce the scale.

It neither demineralizes water by chemically removing minerals, nor it puts excess salt waste or chemicals into the environment.

It uses sediment pre-filter to remove rust, silt and sediment. The Copper-zinc and mineral stone filter reduce water-soluble heavy metals and inhibit bacteria and algae growth.

Additionally, the high-grade activated carbon filter reduces VOCs, , herbicides pesticides, industrial solvents, and more. Moreover, it removes up to 97% of chlorine of regular tap water.

Importantly, the structural integrity of this unit is certified to NSF performance standards that ensure the quality of your entire system.

Additionally, its unique up- flow and dual tank design enhance its performance. It prevents media channeling and clogging.

In summary, Aquasana Rhino SimplySoft ensures clean, healthy, great-tasting water from every point in your home. It’s an outstanding piece that worth every penny you’ll spend on it.


  • Innovative SimplySoft technology
  • Scale and corrosion-resistant performance
  • Simple to install
  • No salt, no backflushing, no drainage line required
  • Requires little to no maintenance


  • Not for well water supply

5. 3M Aqua-Pure AP903

If you’re looking for a high flow whole house filtration system with extra-large capacity, then this option from 3M Aqua-Pure may be just the product you need.  The AP903 filtration system is perfect for well or city water applications.

This 3M AP903 helps reduce contaminants in water and thus provide cleaner, clearer water. Its carbon filter media reduces chlorine odor and taste and thus ensure better tasting drinking water.

Additionally, it protects appliances and plumbing fixtures throughout the home or light industrial/ commercial applications. Importantly, its flow rate provides 75.7 liters (20 gallons) of filtered water per minute.

Another great feature is it comes with non-corrosive stainless steel head that lets you “sweat in place” installation. What’s more, its Sanitary Quick Change (SQC) design offers you an easy and fast cartridge replacement without using any tool.


  • Made from FDA CFR-21 compliant materials
  • Provides consistent, high-quality water
  • Corrosion resistant
  • 100,000-gallon capacity
  • Quick Change Cartridge


  • Some users complained about low water flow issues

Buying Guide

If you know what to look for while choosing a residential water filter, picking the right one for your needs will be a hundred times easier.

The following guidelines will help you a lot to choose the best home water filtration systems.

Types of filtration and Price

Make sure your money is well-spent. But how?

It’s not essential to have a fancy system that filters out contaminant of your water.

Before deciding on a system, get your water tested to find what you need to filter out. Then choose a water filter certified to do the job.

You don’t need to spend your hard-earned cash on an overkill. Also, never go for the cheap option as your health is a concern.

For example, if you already have soft water supply, you don’t need a water softener. But if you have a well-water source or have iron in water, you need a water filter for well water with iron. So, if your filtration system is affordable but it has no capability to remove the existing containants in your water supply, it’s a waste of your money.

Filter Capacity

It doesn’t indicate the physical size of the filter. Instead, it’s the capacity of the unit to filter the water. In general, a standard whole house water system can filter up to 1 million gallons of water. Keep in mind that the larger the unit is in its physical size, the larger the capacity.

Flow Rate

Based on the number of your family members or the size of your house, choose the required flowrate. For a larger family, you’ll need a unit with a high flow rate to cater to the water needs of every member. The higher the flow rate (GPM), the higher the chances of getting steady water pressure.

When calculating the demand, take into consideration the flow ratings printed on your appliances. Count the total fixtures of your home and individual flow rate. Your flow rate requirements may range between 12 to 40 GPM.

Also, note that the port size affects the water pressure. The ideal port size for a whole house filtration system is 1-inch to avoid pressure drops.

System lifespan/ Filter life

You don’t want a home water treatment system that requires to change the filter every month. Right?

The lifespan of a filtering system depends on the filter type, level of water contaminants, flow rates, and the amount you use. A system with replaceable filter/ cartridge requires to change the filter at least every six months. However, there are filtration systems that work well for years or even a decade.

The sediment filter life varies on the sediment quantity.

In general, a good quality whole house 4.5 by 20-inch carbon filter cartridge filters 100,000 to 150,000 gallons of normal municipal water.


Check the certifications of water filtration systems. You can check if your model has NSF or WQA seal on it.

These certifications ensure that the system is tested by the most prestigious organizations in America and has passed the rigorous testing for its quality.

Keep in mind that if any model isn’t certified by NSF, it doesn’t mean that it’s of low quality.

Some manufacturers do the testing in the independent laboratory against ANSI/ NSF standards. If the labs are well trusted, the certification is meaningful.

How Does a Whole House Water Filter Work?

The working mechanism of a single filter and a whole house filtration system isn’t the same. There is a clear distinction.

You need to set up a whole house water filtration system at the point of entry of water into your home. For this reason, it’s also known as the Point of Entry (POE) system.

Most of the units filter the contaminant water by following a 3-stage process.

The First Stage

It’s a pre-filtering stage. A pre-filter is used to remove the larger contaminants and impurities. This stage helps to prevent clogging in the system.

The Second Stage

It involves mainly the removal of chlorine. A special filter is used to eliminate the chlorine that makes both the color and taste of your water terrible.

The Third Stage

This step involves removing any other leftover impurities existing in the water. The system includes a carbon filter or activated charcoal filter to do this job.

Some models further purify this filtered water using a reverse osmosis system or a water softening system.

Installing Whole House Water Filter

Without prior knowledge, whole house water filter installation is difficult for a novice. But don’t despair.

Only a little knowledge can help you to handle the process. You may need to take a bit more time than it’ll take for a plumber or professional to do the job.

This how-to guide will help you to learn the basic installation principles.

Tools and supplies needed for the job:

  • A pipe cutter
  • Drill
  • Copper coupling
  • An adjustable wrench
  • Slip joint push fitting
  • Valves
  • Teflon tape
  • Pressure gauge

Follow the steps below:

Step 1: Turn off the water from the main source of your home.

Step 2: Drain out most of the water. For this, you can turn on the kitchen sink faucet allowing the water to run out.

Step 3: Choose the location where you plan to install the filtration system.

Step 4: Measure the pipes correctly and mark off the spots for the pressure gauges and shut-off valve. Cut the pipe by using a pipe cutter.

Step 5: Insert the shut-off valves at the end of both pipes on your main supply pipe.

Step 6: Mount the filter system by following the manufacturer’s instructions. Apply the Teflon tape where necessary to keep it sealed to prevent leakages.

Step 7: Attach the pipes you cut initially and the unit’s pipes together.  Use a compression nut or push fittings to do this.

Step 8: Attach the unit’s input and output to the push fittings.

How to Change Whole House Water Filter Cartridge

Need to change the filter of the standard whole house water system?

It’s a pretty simple task!

In this section, I’ll show you how to do this.

You may need the following-

  • Filter wrench (usually, it comes with the system)
  • New filter
  • A bucket

Follow the process:

Step 1: Restrict the water flow by using the shut-off valve.

Step 2: Turn on the sink tap to drain out the water in the pipe system.

Step 3: If your filtration system has any release button, press it.

Step 4: Place a bucket under the filter housing to collect any extra water.

Step 5:  Insert the filter wrench underneath the housing and turn. Loosen the housing and slowly turn it out. The housing will come off. Pour the water (if any) left in the filter.

Step 6: Remove the cartridge or filter from the housing and place it another bucket.

Step 7: Clean the housing to remove the dirt. Rinse it thoroughly.

Step 8: Put the new cartridge/ filter in its correct position inside the housing.

Step 9: Screw back the housing to the system.

Step 10:  Turn on the shut-off valve to run the water.


Hope, this shortlist was helpful to you to find the best whole house water filters to meet your need.

Choose the complete solution for your whole home filtration and make the water clean and fit for use in any part of your house.

Thanks for reading.