Compare Top Water Filters - Best 8 Undersink Carbon Water Filters

Water Filter Reviews & Performance Ratings read more.

There are Two Styles of Undersink Water Filter Systems... Sump vs. Quick Change. Which is Better for You?

Most homes on city water average between 55 psi - 65 psi of static water pressure. This system operates best between 20-50 psi. As you can speculate, operating this system under water pressure higher than it is optimally built for can cause the life of this system to be shortened; it could even break.

Top 8 Undersink Carbon Water Filters

Brand/Model	Watts 3 Stage Kwik Change 11"	Aqua-Pure DWS-1000	Pentek US-1500	CUNO FaucetMATE FM-2 Lead Plus	Crystal Quest Triple Multi PLUS	Oasis Green Triple Filter	CUNO FaucetMATE FM-2	Aquasana AQ-4500 Double
System Price	$129.99	$359.59	$163.99	$199.99	$153.99	$189.99	$189.99	$179.98

Filter Change Cost Over 2 Yrs	$206	$240	$100	$374	$332	$226	$374	$240
Water Flow Rate GPM - Gallons per minute; the higher the number, the faster the water flows, the less you have to wait for clean water	.5 GPM	.6 GPM	.6 GPM	.6 GPM	.75 GPM	.5 GPM	.6 GPM	.4 GPM
Operating Pressure Range Operating pressure range is the min and max range of water pressure that the system will operate under for optimal production/performance. Most homes on city water average between 55 psi - 65 psi of static water pressure. More water pressure is not necessarily a good thing for some systems.	20-85 psi	25 - 125 psi	30-125 psi	25-125 psi	25-100 psi	25-100 psi	30-100 psi	20-50 psi This is a BIG problem
Smallest Particle Size Filtered The lower the micron rating, the more harmful particles the water filter will trap	.1 - .3 mic	.5 mic	.5 mic	1 mic	1 mic	.5 mic	1 mic	.5 mic
eFilterWater Review Grade We review every product we sell for the following: Taste of water produced Appearance/size Ease of installation Ease of changing filters And tell you what we think! See our complete assessment in the video section on the product page for each product.	A	A	B	A	B	A	A	B
Warranty	1 year	2 year	1 year	10 year	1 year	1 year	10 year	3 mo
Removes (Partial List - see product page for complete specs)
Chlorine	97%	97.6%	97%	98%	99.9%	84%	95%	99.3%
Lead	99%	99.3%	99.3%	99%	98%	98%	Not Reported	99%
Cysts/Bacteria	99.99%	99.99%	99.99%	99.99%	90%	Not Reported	Not Reported	99.99%
VOCs	95%	99.4%	Not Reported	Not Reported	Not Reported	Not Reported	Not Reported	99.6%
Brand/Model	Watts 3 Stage Kwik Change 11"	Aqua-Pure DWS-1000	Pentek US-1500	CUNO FaucetMATE FM-2 Lead Plus	Crystal Quest Triple Multi PLUS	Oasis Green Triple Filter	CUNO FaucetMATE FM-2	Aquasana AQ-4500 Double