Top 3 Reverse Osmosis Systems

An undersink reverse osmosis water filter system can provide you with great tasting water while protecting your health. Remove contaminants in your water including chlorine, lead, bacteria, and cysts. The undersink reverse osmosis water filter system is ideal for homes where counter top space is scarce, a sleek appearance is a must, and convenience is key. An undersink reverse osmosis water filter has its own separate faucet and requires a separate hole near your sink.

Shop all undersink reverse osmosis water filter systems.

Brand/Model	Watts WQC4RO11-50 Kwik Change Reverse Osmosis System 50 gpd	CUNO Water Factory SQC-3-HF Reverse Osmosis Drinking Water Filtration System
System Price	$269.99	$374.98
Filter Change Cost Over 2 Yrs	$213.97	$326.44
Filtration per Day	50 Gal	33 Gal
Smallest Particle Size Filtered The lower the micron rating the more particles the water filter will trap	.0001 mic	.0001 mic
eFilterWater Review Grade eFilterWater Reviews the systems we sell for the following: Taste of water produced Appearance/size of system Ease of installation Ease of changing filters And we give it a grade to tell you what we think, so you don't get any surprises!	A	A
Separate Tank Size	4.4 gal	2.6 Gal
Warranty	1 yr	10 yr
Removes (partial List - see product page for complete specs)
Chlorine	Not Reported	96.80%
Lead	98.80%	98.60%
Cysts	99.99%	99.99%
Turbidity	99%	98%
Total Dissolved Solids (TDS)	97%	96%
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.	35-100 psi	40-100 psi
Brand/Model	Watts WQC4RO11-50 Kwik Change Reverse Osmosis System 50 gpd	CUNO Water Factory SQC-3-HF Reverse Osmosis Drinking Water Filtration System