Best Whole House Water Filter – Reviews and Buyer’s Guide

Whole house water filters are very handy as the offer a comprehensive solution to all the water related issues at hand. The whole house water filters are very popular because they deliver high quality and safe water and are very effective too. Also, these systems are eco-friendly and they don’t produce any harmful substance or chemicals in the water.

From cleaning to bathing and from cooking to drinking, water is the most important part of everyone’s daily routine. Without safe and clean water everything can go wrong and can cause threat to a healthy lifestyle.

Fortunately, because of the advanced technology things are getting better and advanced methods are being used to make the water pure and safe for daily use. A whole house water filter is a purification and treatment unit that that filters and cleanses the water and makes sure that the water is not contaminated.

Whole House Water Filter Buying Guide:

A good quality whole house water filter is certainly the best investment for anyone who is troubled with the smell of chlorine or other metal in the water. However, there are many options available as there are many companies that design whole house water filter.

In such a situation, it gets difficult to choose one. So, if you’re going to invest in a whole house water filter, consider these factors before you do it:

Water Quality:

The first thing to find out is the quality of water at your place. This will allow you to get a water filter of the exact type that is suitable for removing the contaminations in your water. Is your water sourced from city water or well? Do you have access to the quality report of the water you get? If you aren’t sure, you can send the water to a lab and get the lab report from there. Also, there are test kits available that give you a little bit idea of your water quality. If you’re receiving municipal or city water, you’re lucky because you’ll get the quality report for free.

However, municipal tap water contains haloacetic acids, trihalomethanes, and fluorides that can pose serious risk to the health. In some cases, water is polluted with chemicals such as herbicides, fertilizers, pesticides, and harmful microorganisms. There is a chance that the water may be contaminated with lead if you’re using old pipes. Following are some common types of contaminants in water:

  • Chemical contaminants can be man-made or naturally occurring. Examples include pesticides, salts, metals, bleach, toxins produced by animal drugs, bacteria or humans. The metals include ferrous and ferric those are two forms of iron.
  • Physical contaminants include materials or sediments suspended in rivers, lakes and streams from soil erosion.
  • Radiological contaminants include uranium, cesium, and plutonium.
  • Biological contaminants are the micro-organisms present in water and that include parasites, bacteria, protozoan, and viruses.

Household requirements:

The next important step is to determine your household requirements. Some household filters are based on the maximum flow rate through your place. For example, at a particular time in the day there will be a maximum flow rate because there will be so many activities going on at once.

There must be someone bathing, dishwasher running, using washing machine, toilet flushing and thus the flow rate will be high at that time. The number of bathrooms in a household also helps to determine the flow rate.

Another important thing to consider is the number of people in your house. The flow rate will also depend on this as the greater the number of people, the higher the flow rate. Knowing the number of people can give you an idea of the household water usage. Some whole house water filters size is based on the average flow rate or total water used by a household per day.

Flow rate and microns:

The flow rate, as mentioned above, is the measure of the amount of water that is used or spent in the household. It is measured in gallons/minute and to buy a water filter, you must first determine the flow rate. For example, toilets and dishwashers will have a flow rate of around 3 to 5 gpm while a showerhead will have 2.5 to 5 gpm.

A bathroom faucet will have a flowrate of 1.5 gpm while a kitchen faucet will have a gpm of around 2.2 gpm. Now depending upon the number of dispensers such as hot water heaters, showers, toilet, and dishwashers, you can take out a rough estimate of the total gallons per minute. You must also consider the family members of the household because this also affects the flow rate.

Most of the standard flow rate requirements of small to large households are ranged between 15 to 40 gpm. For the total flow rate you’ll have to add the individual flow rates and then get an estimate.

If you want, you can also consult a professional for help. Another thing to be noted is the micron, which is the unit for measuring the effectiveness of a water filter. A smaller micron rating indicates thorough filtration where 1 micron is a thousandth of a millimeter.

For example, a water filter with a micron rating of 50 will be able to remove rust, sand, and silt. A micron rating of 50 won’t be able to remove smaller particles such as chemicals, lead, fluoride and most of the pathogens. There are micron ratings of 25, 10, 5 and even 1 but there is one problem with a small microns rating. The smaller the microns rating, the lesser the water flow.

Size of the water filter:

The larger the size of the water filter, the greater the flow rate and the pressure. For most of the homes, the ideal size is 4.5’’ X 20’’ but larger homes will need larger filters of around 25 gpm flow rate. Port size also plays an important role here and the ideal port size is 1’’ if you want to avoid pressure drops.

The port size is the connection point diameter and it helps in carrying enough water through it so that the pressure drop becomes virtually non-existent.


It is a good thing if your water filter is certified by the NSF (National Sanitation Foundation). Certain verifications and certifications such as the WQA (Water Quality Association) seal on the whole house filter indicate the high quality and standard compliance.

These are the most prestigious organizations in the US and certifications from these companies are necessary. However, even if your device is certified, it doesn’t mean that it is completely error free. Also, if your water filter isn’t certified, it doesn’t mean that it is of poor quality.

This is because certification from these organizations is very costly which most of the small companies aren’t able to obtain.

No matter what the size of the water filter is, you must make sure that it is certified and approved from the concerned authorities. Such whole house water filters are not only compliant to the protection and safety rules by the authorities, but also solve all the filtration needs.

Types of water filters:

Choosing the type of water filter is also very necessary as there are many different types available. This must be done after you’ve determined the quality of water and identified the types of contaminants in the water.

The chemicals responsible for the unpleasant taste and smell of the water are chlorine, sediment, and other chemical substances. A water filter that is specialized to remove these materials will remove magnesium, iron, and other heavy metals from the water too.

A reverse osmosis system makes water 100% drinkable as it removes all the harmful substances from it. However, you must talk to a professional so that you’re guided in the right direction regarding the type of filter you need for your house.

If your main water line is maintained by municipal service, you’ll have to remove chlorine, sediments, chemicals, and minerals from it. If your main water line is sourced by a well, then you’ll need to consider removing iron, minerals, sediments, and hardness from the water.


When buying a whole house water filter you must not only consider the cost of buying the system, but also the maintenance and replacement costs. A filter with a higher capacity will be more expensive but it will last for long.

To buy a whole house water filter, you don’t need to sell your kidney but don’t go for the cheapest one either. For example, if your water supply is already soft, you won’t need an additional feature in your water filter and you can go for an affordable one that can just remove the harmful substances.

Lifespan of the water filter:

A whole house water filter is very hard to install, and it takes a lot of time and plumbing skills as compared to just using a countertop filter. There are many other things included in the maintenance such as replacing the cartridge which is another difficult thing.

For this reason, you must go for a water filter that doesn’t require maintenance very week or few days. This is because, maintenance of a water filter will involve turning on and off of the water supply that can trouble the family members. There are filters that are effective for even 10 years and you can choose them if you feel frequent maintenance is not your thing.

Space available:

As compared to average filter systems, the whole house units are much larger and thus you’ll have to arrange ample space for it. If you have enough space at your home, you’ll be able to install it easily there.

Manufacturer and seller credibility:

There are many manufacturers and best sellers that provide free of cost installation, shipping, and other services. Always go for the sellers and manufacturers that are credible and have lots of positive reviews. Also, it is mandatory to get the installation done by the manufacturer and make sure they get it done from a certified and professional plumber.

Also, check the list of the contaminants that a water filter can remove. Look for free services and warranty too so that you don’t have trouble with maintenance later. FDA approved cartridges are very efficient but not all the manufacturers can provide it.

How We Picked:

We have picked the best whole house water filters so that our readers get to choose from a list of the bests. The performance and effectiveness of the water filters vary according to the type of the filter. Most of the water filter manufacturers publish the lab test reports on their websites and we checked them from there.

Some of the water filters didn’t have lab test reports and that’s the reason we requested from the company by calling them. We analyzed the report thoroughly and then picked the best water softeners. All the water filters listed here are tested by a certified third party lab.

How We Tested:

A lab test report lists the contaminants that the filter is able to remove. A water filter is considered of good quality if it’s able to remove most of the contaminants from the water. We tested the whole house water filters and compared them according to the number of water pollutants they were able to remove.

We also considered the water flow to determine the performance of a water filter. The third party lab tests were very helpful in determining the performance of a water filter. Some water filters are able to remove more contaminants than the others and that is how we decided the position of them on our list.

For example, one water filter might be able to remove 50% of a contaminant while other may be able to remove 90% of it. Following is a list of the 10 best whole house water filters we have picked:

Top 10 Whole House Water Filters Reviews

Finding the best whole house water filter is difficult because of the range of options available. However, we have carefully picked the top 10 whole house water filters that are not only popular but very credible too.

1. iSpring RCC7AK – Best Reverse Osmosis System for Whole House

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The iSpring RCC7AK is a very advanced and efficient reverse osmosis system which can easily remove most of the chemicals, microorganisms, debris, and bacteria from the water. This water filter is very compact and it can easily fit into a small kitchen counter cabinet.

The unit is very easy to install and it comes with clear instructions and there are video tutorials available too. The unit has a 1 year warranty and lifetime technical support to help the customers at every step.

The RCC7AK RO comes with a complete filter pack which makes the water healthier and better tasting. There are many benefits of the alkaline pH filter and the UV light is great for killing viruses, bacteria and other microorganisms in the water.

When you buy this unit, you’ll also get a faucet that is very durable and has an elegant design. The iSpring water filter is capable of producing up to 20 gallons of wastewater for one gallon of pure water. It has an efficiency ratio of 2:1 and is considered as a high quality water filter.

The water filter guarantees removal of around 99% of the harmful substances and contaminants from the water. It can remove everything from the bad tasting and foul water but you have to change the water from time to time.

The filter should be replaced every 6 months or every year depending on the quality of the water. The filter is a 6th stage alkaline re-mineralization filter that restores the original chemical properties of water and makes it safe and healthy to drink.

  • It is very affordable.
  • Water production is fast and is ideal for large households.
  • The customer service is good.
  • Remineralization filter improves the water’s taste.
  • UV filter is good at killing all the harmful substances.
  • The pH filter is not 100% efficient.
  • Most of the people have problems with the instructions.

2. Home Master HMF2SMGCC – A Superior Whole House Filter

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The Home Master whole house filter is very well-made and is a durable water filter. It is a large size filter and one benefit is that it allows maximum water flow through its 1 inch ports. Also, the large filters last for long between the replacements and you don’t need to check on them frequently.

There are 2 stage filters and the first filter is a multi-grade one with 25 micron outer, 10 micron inner,  5 micron inner, and 1 micron inner core layer.

The second stage filter consists of catalytic carbon filter with KDf85 which is perfect for removing chloramines and chlorine that is abundant in municipal city water. The filter is capable of providing odorless and crystal clear water which is safe and healthy for drinking.

During filtration, 95% of the sediments including chemicals, chloramines, chlorine, heavy metals, and contaminants are removed. It comes with a 2 year limited warranty and the customer service is good too. The patent pending steel mounting bracket easily fits onto 16 inch studs and the whole package includes mounting bracket with bolts, filters, and housing wrench too.

The filter allows a flow rate of around 10 gallons per minute and has a total of 95,000 gallon capacity. The multi-gradient density sediment filters are very efficient in removing all types of dirt and sediments.

  • High flow rate because of large filters.
  • Unit is very compact and can fit easily in small spaces.
  • Filter replacement can be done in one year.
  • It is suitable for all types of water sources.
  • Micron rating as fine as 1 micron.
  • Filter replacement is expensive.
  • No water softener included in the filter.

3. DuPont WFPF13003B – Whole House Water Filter for Well Water

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The DuPont WFPF13003B is a very efficient and affordable water filter. In spite of being so affordable, the unit doesn’t compromise on functionality or quality. The good thing is that, it comes with a 3 year warranty and is ANSI and NSF certified too.

The water filter is very lightweight and comes with all the accessories to make the installation process a breeze. It comes with a 10’’ filter which is of standard size and that makes it easier to replace or upgrade the filter.

The filter is perfect for removing rust, sediments, and silt. It can easily and efficiently remove all the heavy metal contaminants, chlorine, and harmful substances that alter the taste and odor of the water. It has an ideal and compact size and if you don’t want to attach it to the main source, you can directly install it under the sink or wherever you want filtered water.

It has a capacity of filtering up to 15000 gallons for office or home. It also features a Universal 500 series poly black cartridge and replacing it is very easy. The unit comes with a bracket and wrench for installation. The standard system has ¾ inch inlets and outlets which allow water flow at a good rate and with good pressure.

The DuPont water filter is ideal for those who have municipal water as the main source which contains a high quantity of sediment contaminants. If your water quality reports suggest that it contains pesticides or heavy metal then you should know that this filter won’t be able to filter those.

  • Filter replacement is very easy.
  • The filter is of standard size and fits other brands easily.
  • You have the ease of using it for whole house or just a sink.
  • It comes with a 3 year limited warranty.
  • It has a nice and compact design.
  • It is very affordable.
  • It doesn’t remove heavy metals or pesticides.
  • Not as effective as a Reverse Osmosis filter.

4. Culligan WH-HD200-C –  Heavy Duty 1″ Inlet/Outlet Filtration System

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The Culligan WH-HD200-C is a great addition for your home, especially if you’re troubled by the foul taste and odor of the water. Culligan is a well-known brand and all of its products are trustworthy and durable. The setup and installation of this water filter is not very easy but there are inlet and outlet connectors that make the assembly a bit easier.

The water filter removes all the impurities and contaminants from the water easily and protects the water from the deposition of the harmful elements.

The unit operates on batteries and this is a good thing as it will operate easily even when there’s no electricity. This allows continuous supply of water to the household even there is power shortage. You can easily change the battery when it has completely drained.

Also, there is a timer that lets you know about the remaining time for purification process. The water filter is certified from WQA, NSF, and CSA and thus it is extremely safe for drinking and using. The water filter has been designed in compliance to the ANSI standards and is very durable and long lasting.

The Culligan water filter includes a bypass and a shut off valve and there is a pressure relief button too that relieves the filter when the pressure is high. The filter is suitable for municipal as well as the well water and it also helps in removing any type of scale that has settled in the water.

  • It is perfect for residential houses.
  • It is durable and well-constructed.
  • There is no drop in water pressure.
  • The state of the filter can be determined easily because of the clear bowl.
  • It is fully certified.
  • Filters must be purchased separately.
  • More frequent replacement of filters.
  • Installation isn’t that easy.

5. Fleck 5600SXT 48,000 Grain – Sulfur-Cleer Whole House Water Filter

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The Fleck 5600 SXT is one of the most popular and highly efficient whole house system. The unit is very light weight and easy to navigate. With the purchase, you get an upgraded paddle wheel meter which improves the water dispersion. Setting up the whole unit is very easy but after you have installed, you don’t need to do maintenance tasks frequently. Since it is a salt based system, it requires regeneration but it isn’t anything difficult

The whole house system is designed especially for waters that contain sulfur, iron, and manganese. It has a flow rate of 12 gallons per minute and is suitable for a small to large family of around 5 to 6 people. Using this whole house system, you can run a dish washer, a washing machine, two sinks, and 3 showers at a time. It has a crosslink resin of 8% which is suitable for city as well as well water. Installing it is easy and it comes with a USB drive too that has instructions and video tutorials to help you out.

The Fleck 5600 SXT features a backup power capacitor that saves the program settings and the cycles of the filter. This backup power capacitor also measures the number of gallons that have been used so that an automatic regeneration cycle is set up that takes place during night.

The Fleck 5600 SXT whole house system softens the hard water very efficiently and prevents any type of limescale buildup on the faucets, appliances, and plumbing units.

  • It offers amazing warranty.
  • It has a large capacity.
  • It is very effective at softening water.
  • It turns off the water meter automatically.
  • It is economical.
  • It is quite heavy.
  • Salt pellets can be costly if not used properly.

6. 3M Aqua Pure – Best Whole House Carbon Walter Filter

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The 3M Aqua Pure Whole House Water Filtration System is a perfect solution for all the water related problems. It has a stainless head steel which comes with a 25 years limited warranty and the filters last up to one year.

The 5 micron rating of the filter is impressive as it removes all the dirt, dust, rust, and sediment as well as the chlorine smells from the water. The replacement of filters is very easy and it can easily done without using any tools.

The whole house water filtration system has a great look and is very durable too. The head is made up of 304 stainless steel that resists corrosion and is very sturdy. The system features Sanitary Quick Change (SQC) which allows you to secure filter cartridge with the steel head.

The filter cartridge is the main thing that is responsible for filtering the water efficiently. The water filter is ideal for city or municipal water sources as it removes chlorine very well. Also, it requires very less maintenance as compared to other water filters. It has a water flow rate of 20 gallons per minute and the lifespan of the filter is one year which count up to around 100,000 gallons.

The water filter gives protection up to 5 microns which means that contaminants or pollutants of any size below this will pass through the filter. Overall, it provides great protection against most of the contaminants except the pesticides. It offers a high flow rate which can be good for appliances that provide around 20 gallons of water per minute.

The water filter also complies by FDA CFR-21 standards. The filter is a carbon media filter that reduces the taste of chlorine and eliminates all types of chlorine odor and taste. The cartridges are equipped with a twist off function which makes them easy to replace.

  • It completely eliminates the chlorine odor and taste.
  • Filter changing is clean and easy.
  • It is affordable.
  • Pressure drop is very less.
  • The unit size is small.
  • 5 micron rating is not suitable for removing pesticides and other smaller materials.
  • It isn’t suitable for well water source because it is sensitive to heavy sediment and metals.

7. iSpring WGB32B – Premium Filtration

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The iSpring WGB32B whole house filter is a 3 stage one and can be a very useful addition to your home. It is NSF certified along with a lifetime tech support, a 1 year warranty and a 1 year money back guarantee. The first filter is a 5 micron sediment and it can clean out the large dirt particles easily before the water goes to the 2nd and 3rd filter.

The 2nd and 3rd filters are carbon block filters with a 5 micron rating and they are capable of removing more than 90% of chlorine and make sure water is free of any odor or taste. The filter can also remove heavy metals like lead, sediment, VOCs, rust, and many other contaminants.

There are jumbo filters and one inch ports that make sure water flow is fast and continuous. Installation is very easy, you can do yourself but if you’re confused you can ask a professional plumber to do so too. The filter has a sturdy metal frame which helps installation easier and allows easy mounting on the wall too.

One of the main features of this water filter is its reverse osmosis system which works efficiently as is quite cheaper as compared to the expensive water filters. The port delivers a water flow rate of 15 gallons per minute which is quite impressive.

  • The filters are very cheap and efficient too.
  • It is good for municipal water and for well water both.
  • Filters can be customized according to preference.
  • The customer support is great.
  • You’ll need some DIY skills to setup the whole house water filter.

8. Watts WH-LD – NSF Certified Filtration System

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The Watts WH-LD whole house water filter is ideal for your home if you want cleaner washing machine, water heater, dishwashers, refrigerators, and other appliances. If your tap water has a bad taste or odor, or makes your skin rough, this whole house filter will help you eradicate these issues.

The Watts WH-LD water filter is very affordable too and is very easy to install. There is an installation guide provided and all it takes is just some DIY skills to setup the unit.

There are ¾ inch metal threaded inserts which are sturdier than plastic fitting. There are three 50 micron sediment filters that remove dirt, sediment, and rust easily. The size of the filters is standard that is of 10’’ X 2.5’’ which easily fit into other brands. The bypass valve is built-in and cleaning and maintaining it is very easy.

The water filter is NSF certified and tested and removes all the contaminants efficiently. The maximum operating pressure is 100 psi and the flow rate is 20 gpm.

  • Filter changing is very easy.
  • It has a one year warranty and is NSF certified.
  • It is very affordable.
  • The flow rate is very high.
  • The 50 micron sediment filter is a big drawback.

9. Aquasana – Best UV Whole House Water Filter

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The Aquasana whole house water filter is ideal for you if you want clean water for drinking, cooking, washing, and bathing. The water filter is ideal for removing 97% of chlorine from water and also removes harmful substances such as contaminants, heavy metals, pesticides, and industrial solvents too.

The water filter is guaranteed to last for 10 years and is capable of filtering around 1,000,000 gallons of water. After the lifespan is over, another replacement tank can be bought which is very affordable. However, it must be noted that to avail the 10 year warranty the unit should be installed by a professional plumber.

There are shut off valves that support easy filter changes and the brass fittings are also easy to install and maintain. The unit includes 20’’ pre-filter, filtration tank, brass fittings, post-filter, shut off valves, and bend supports. It has a smart design and the power UV sterilight filtration kills almost all of the harmful substances such as the bacteria, viruses, and protozoa from water.

  • The filters are cheap.
  • It can easily clean all the household water.
  • The water pressure is good.
  • Ten year warranty is impressive.
  • Filter changing is easy.
  • It is expensive.
  • Must be installed by a professional.

10. APEX MR-3020 – A Good Looking NSF Approved Water Filter System

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The Apex MR-3020 is an all-rounder kind of water filter that cleans the water and is suitable for even large households. The water filter has a high capacity and a high flow rate which makes it good for houses with an increased water usage. The water filtration of this unit is divided into three stages where the sediment removes the large particles and the carbon filter removes the chemical contaminants and bacteria.

The unit includes mounting bracket, filter wrench, 3-stage filtering system, filter catridges, and 1’’ inlets and outlets. The unit is large and is not suitable for small homes, instead it should be used for apartment buildings and office buildings. There is activated alumina and a 3-stage filtration system that removes 99.9% of all the water contaminants.

  • It has a wonderful design.
  • Cartridge changes are easy.
  • High capacity and high flow rate.
  • It is NSF approved.
  • Customer support is not up to the mark.


A whole house water filter is very necessary especially if you have a municipal water source. A whole house water filter makes sure you get clean and safe drinking water and that there is no type of contamination left in it. The top 10 whole house water filters listed in this post are the most popular ones as they are from trustworthy manufacturers and are very efficient. We picked all the water filters very carefully and all the features were taken into account. All the water filters listed here are top-notch ones but our top pick is the iSpring RCC7AK whole house filter as it delivers excellent value for money.

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