Under Sink Water Filter Buying Guide



Do you know what’s in your water? If you plan to have clean water by just open your faucet, an under sink water filter is what you need. If you have one, you don’t need to cost money to buy bottled water. What’s more, this is also helpful to the environment, because you help to reduce the use of plenty of bottles which end up in the landfills. At first, I bought bottled water to drink, because I dislike the taste of the water from my faucet. As I need more and more water to drink and cook, I found that buying bottled water had spent much money. At last, I decided to get an under sink water filter. Here I’ll share some tips for you when you are looking for the right model for your home.

What to filter out?

The first thing you should consider is that what contaminants you plan to filter out. Generally, there are plenty of contaminates in your water. Some cause bad smell and taste, some may cause serious diseases in the long run. These contaminants include chemicals, heavy metals. VOCs, etc. Therefore, you should know what’s in your water. Getting a water test is a good start and this can help you know what makes the water smell and taste badly. Generally, the water company provides a testing service, so you can ask for a test, or they may publish a water quality routine report. You also can buy a test kit to get a water test yourself if you plan to do it yourself. You can buy these test kits on the Internet easily.

What type of filter to choose?

After water testing, you found your water quality is pretty good but you just need to remove sediment or chlorine to improve the water smell and taste, a 1 or 2 stage water filter is enough. If you found the water quality is not as good as you imagine, then a more than 3-stage water filter is needed. Another factor you also need to consider is that how much filtered water you need every day, which can help you find the right one which can offer you enough water to use.

The Best Type

If you want the best type in under sink water filters, a reverse osmosis system (RO system) is a good choice. RO systems can filter more contaminates out of the water. Contaminants like Arsenic, Copper, Iron, Lead, Mercury 2, Sodium, Chloride and much more can be effectively removed.

There are some guidelines when choosing an under sink filter:

Read Customer Reviews

This way can help you quickly know what real users have to say about the filter or system you plan to buy. However, different people have different reviews. A few negative reviews must be disregarded, because there is no perfect product and one product cannot satisfy all the people’s requirements. Therefore, just focus on the majority consensus about a product. Checking their reviews can help you know if it is good or bad. It is really a good starting point.

How much Money you should pay for

When planning to install a plumbing fixture, you also need to consider the cost. You don’t need to pay for much to get a great one with some advance features that you don’t need. You just need one with the right features. Therefore, comparing prices with features among different models can help you take a good use of your money.

Easy to Install

If the installation is too complicated, you may need to hire a professional plumber, which may cost you much money. Therefore, try to purchase one that is easy to install and comes with all parts required for installation. Therefore, you can install it yourself easily, without hiring a plumber. Most models come with all the parts required for installation and a product manual to help you learn how to start the installation.

Enough space for installation and compatibility

When buying one, you should know the space under your sink is enough for your filter. A spot for the faucet above the sink is also important. You also need to know if it is compatible with other fixtures and appliances. If the space is limited, you should consider a small and compact one.

Residual cost

Generally, you should change the filter of a RO system every 6 months to keep it effective to remove contaminants. If you need plenty of water to use every day, the filter may be needed to replace less than 6 months. Therefore, the replacement filter may cost you much and you also need to consider the residual cost. Some replacement filters may be more expensive than the original unit. If you know the maintenance cost before ordering, this can help you make a wise decision between models.

Top 3 Best Under Sink Water Filters

The following top 3 best under sink water filters were chosen due to their performance, customer reviews, average ratings and great features. If you don’t know how to start, this is a good start.

Top1 Tap Master TMAFC Artesian Full Contact Undersink Reverse Osmosis System, White

This model is my favorite one and I have one in my house. Although it seems a little expensive, it deserves it. It has 7 stages of filtration and it can remove up to 98% of contaminants, like heavy metals, chemicals etc. In order not to remove healthy minerals, this system can add minerals back when water flows out of your faucet, which make the filtered water taste great. And you don’t need to worry about the loss of calcium and magnesium which are added twice during the purification process. It can offer up to 2000 gallons before replacing filters. This means it can last about 1 year without replacing filters. And the installation is also very easy – no wrenches required. Although it is more expensive than other models, many people finally chose it as their under sink filter. The average rating is 4.8 out of 5 stars, which means most people highly spoke of it.

Top 2 iSpring 75GPD 5-Stage Reverse Osmosis Water Filter System with Brushed Nickel Faucet

If you think the Tap Master TMAFC is a little expensive, this iSpring 75GPD is just what you need. The price is no more than $200 and it is the most popular one on Amazon. There are over 500 customer reviews for you to check. Considering the price and its performance, it is the best value RO system. It can effectively remove up to 99% of chlorine, lead, fluoride, arsenic, pharmaceuticals, microorganisms and 100+ pollutants, which can offer you clean water to drink and cook. And this model is totally manufactured in the USA. What’s more, this model comes with a Brushed Nickel Faucet.

Top 3 APEC Water Premium Quality 90 GPD High-Flow Reverse Osmosis Drinking Water Filter System (RO-90)

This model is also manufactured in the USA. It is a 5-stage model which can provide you with refreshing crisp taste water, so you don’t need to cost money on bottled water. It is able to remove up to 99% of chemicals, heavy metals, bacteria etc. It is durable and can provide double flow rate of other standard RO system. The rating is 4.8 – the same as Tap Master TMAFC.

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