Guide: Undersink Water Filter Systems
In This Buyer's Guide:
- Why should you buy an undersink water
- Which contaminants
do undersink water filter systems remove?
- How to install an
undersink water filter
- Which undersink
filter is right for you?
Culligan Undersink Water Filter System
CBF3 Undersink Water Filter System
AP200 Compact Undersink Filter System
- Pentek 1500
Monitored Undersink Water Filter System
- Aqua-Pure AP
Easy Complete Drinking Water System
HIP/DIY UltraCarb Undersink Filter System
H-300 Undersink Water Filtration System
AP-DWS1000 Undersink Water Filter System
WQCFU-T-11KIT 3-Stage Undersink Water Filter System
AS-301E 3-Stage Arsenic Reduction Undersink Water Filter System
should you buy an undersink water filter system?
you live in a large household and need to filter large amounts of water
for cooking and drinking, an undersink filter system provides a less
costly alternative to reverse osmosis filtration, both in terms of
water waste and financial expense. Installation does require some
changes to your household plumbing, but in many cases, the filters last
longer and may be more efficient at filtering out contaminants than
water filter pitchers, countertop water filters or refrigerator water
filters. Most undersink filters also come with a separate
allows you to choose between filtered and unfiltered water. Once
installed, changing the filter(s) is as easy as removing the canister
and inserting the replacement cartridge. Moreover, since these filters
are hidden underneath the kitchen sink, they will not take up space
inside your refrigerator or on your countertop. They come in a variety
of shapes and sizes to suit the space under your sink, as well as a
wide range of prices to suit your financial needs.
contaminants do undersink water filter systems remove?
undersink filters use an activated carbon filter media that reduces the
bad taste associated with chlorine taste and odor. Some also have
pre-filters that remove sediment, dirt, sand, silt, rust and limescale.
More advanced undersink water filters may also remove other
contaminants as small as 0.5 microns, including: lead, microbial cysts
(cryptosporidium and giardia), algae, mercury, pesticides, herbicides
and volatile organic compounds (VOC's). It is important to test your
water before buying an undersink filter to determine what contaminants
need to be removed. This can be done through a water testing laboratory
or at home with a water test kit. For more information, see our
article, "How to Test Your Drinking Water."
to install an undersink water filter
follow all instructions contained in the package when installing your
water filter system. The basic installation process is as follows:
Many undersink filter systems come with a separate water dispenser,
allowing you to choose between filtered or unfiltered water for various
uses. Mount the faucet dispenser that comes with your installation kit
to the top of the sink. Most are designed to fit into the extra hole
where the sprayer is usually located, but if this is already occupied
and you want to continue to keep the sprayer where it is, you'll have
to drill another hole. Follow the manufacturer's instructions for the
location and size of the hole, and only drill into stainless steel or
porcelain cast-iron sinks. If your sink is all-porcelain, drill through
the countertop instead.
2. Shut off the water supply under the sink. Use an adjustable wrench
disconnect and remove the tubing that connects the water faucet and the
Install the filter in the space between the cold water supply and the
faucet, underneath the sink where the rigid water supply line was
removed. An undersink filter kit usually includes flexible supply
lines. Connect one from the water supply to the filter inlet, and
connect the other from the filter outlet to the faucet tubing, making
sure all fittings are sealed water-tight to prevent leaks.
Mount the canister to the back wall of the cabinet underneath the
kitchen sink. Make sure it is mounted high enough to allow enough space
for the removal of the canister body when changing the filter.
5. Turn on the water supply. Check the system and its fittings for any
sign of leaking, and adjust the fittings if necessary.
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undersink filter is right for you?
type of undersink water filter you need depends on what's in your water
supply and what you want removed. The most basic filters remove the bad
taste and odor associated with chemicals like chlorine, while more
advanced filters will remove more.
Here are some of the filters we carry along with their features and
specifications, listed according to our opinion of where they rank in
terms of overall performance. Please click on the links for more
detailed product descriptions, and/or to purchase the filter.
system is ranked premium by Culligan standards. It reduces many
contaminants including the bad taste and odor of chlorine, class I
particulates, sediment, turbidity, lead, mercury, VOC's, MTBE and
cysts. Unlike the Culligan US-EZ-1 and US-EZ-3,
the Culligan US-EZ-4 will also filter chloramines from your water,
which many municipal water treatment plants are beginning to use as
disinfectant. The system includes a lead-free faucet with a built-in
filter life indicator that lets you know when to change your filter.
Replacing the filters involves a simple twist of the wrist and should
be done every 500 gallons or six months. .
filter system reduces many contaminants larger than 0.5 microns,
including: rust, sediment, asbestos, chlorine, chloramine, lead, cysts,
mercury, pesticides, herbicides and VOC's, from your drinking water. It
is easy to install and allows for easy filter replacement. Filters
should be changed every 550 gallons or every six months.
compact filter system fits right underneath your kitchen sink and comes
with a mounting bracket for easy installation. The premium dual-action
cartridge reduces the basics - rust, along with chlorine taste and odor
- leaving you with fresh-tasting water for drinking and cooking. This
is perfect for a household that needs the type of long-term, basic
filtration that water pitcher filters can't provide.
Pentek US-1500 Monitored Undersink Water Filtration System efficiently
reduces dissolved lead, cysts, chlorine taste and odor, chemicals,
sediment, particulates, mercury, VOC's, pesticides and herbicides. This
system also comes with an electronic monitor that lets you know when
it's time to replace the filter. Filters should be changed once per
year, or every 1,000 gallons.
AP Easy Complete Undersink Water Filter System comes with a lead-free
faucet and effectively reduces lead, chlorine taste and odor, cysts,
sediment, scale and VOC's. The filter cartridge should be changed every
Doulton UltraCarb system comes with a chrome faucet and uses a ceramic
filter candle for the reduction of cysts, chlorine, class I
particulates, turbidity and lead. Depending on water quality and usage,
the filter should be changed every six months to one year.
commercial grade filter system is ideal for any home or business. It
uses an advanced Everpure Micro-Pure Quick Change Filter
that removes a long list of contaminants, including: lead, mold, cysts,
algae, rust, sand, silt, asbestos, sediment, dirt, limescale,
particulates, oxidized iron, oxidized sulfides, oxidized manganese,
chlorine taste and odor, chloramine taste and odor, VOC's, THM's and
any other particles larger than 0.5 microns. It also features
Bacteriostatic control to stop the growth of bacteria inside the
cartridge, which prevents premature clogging. The filter has a life of
about 300 gallons and should be changed when you notice a significant
reduction in water flow from the system. This water filter system does
not come with a faucet; however a compatible faucet, such as the
stainless steel Everpure Exubera Water Faucet may
be purchased separately.
water filter system filters lead, sediment, rust, cysts, VOC's and
MTBE. It comes with a lead-free faucet and features a built-in
monitoring device that shuts off water to remind you when it's time to
change the filter. The quick change filter cartridges should be
replaced every six months or 625 gallons.
Watts 3-Stage Undersink Water Filter System filters water in 3
stages for the effective reduction of many contaminants, including:
chlorine taste and odor, class IV particulates, sediment, dirt, silt,
sand, THM's, limescale, rust, dissolved solids, lead, chemicals, VOC's,
cysts, herbicides, pesticides, insecticides and more. It is a
less-expensive alternative to the Watts Kwik Change Reverse Osmosis system,
using color-coded quick change filters for easy replacement. It also
uses 100 percent of the water it takes in, leaving no wastewater,
unlike the reverse osmosis system.
Pentek 3-Stage system is specifically designed to filter arsenic III
and V, along with iron, manganese, hydrogen sulfide and chlorine taste
and odor. Filters should be changed every 1,000 gallons or at least
once per year.
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