A home water filtration system will give you peace of mind. Universal Water provides convenient online ordering for all of our filtered water solutions. Choose from whole house water filtration systems or under counter water filters. You've found the right place if you need a counter top water filter, refrigerator filter, shower filter or camping water filter.


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Counter Top Filters
Under Counter Filters
Refrigerator/Ice Maker Filters
Shower Filters
Whole House Filters
Well Filters
Camping Water Filters
Reverse Osmosis
Arsenic Water Filters
Fluoride Water Filters


Replacement Cartridges
Water Filter Faucets
In-Home Water Test Kits
2 Gallon Refrigerator Bottle
Drinking Water Bottles-32 oz.
Under Counter Water Chillers
Countertop Water Coolers/Heaters/Carbonators
Diverter Valves
Filter Housings
Wonder Shower
Built-in Coffee Makers
Coffee Servers
Water Softeners
Home Car Wash Spot Free Rinsing System


How Our Filters Work
Filter Cost Comparison
Technology Comparison
Protocol Test Results



20,000 gallons of city water, spiked with high levels of specific contaminants, was run through a KDF/GAC cartridge. The efficiency shown below was measured AFTER 20,000 gallons had passed through the cartridge (when new, removal is 99+%). Most other non-standard tests show results after only one pass of contaminated water, which does not indicate how the filter will perform towards the end of its life. To pass the NSF-53 protocol, the effluent must be under the EPA Maximum Contaminant Level (MCL) throughout the test.

All concentrations are measured in milligrams per liter (mg/l).

Test Results at 20,000 Gallons
Chemical Influent Effluent Efficiency EPA MCL
THM (chloroform) 0.57 0.029 95% 0.1
Lead 0.19 0.006 97% 0.025
Fluoride (1) 8.26 0.78 91% 1.4
Nitrate (1) 30.7 8.03 74% 10.0
Barium 10.4 0.56 95% 1.0
Arsenic 0.37 0.007 98% 0.05
Cadmium 0.03 0.004 87% 0.01
Chromium VI 0.15 0.011 93% 0.05
Chromium III 0.163 0.003 98% 0.05
Selenium 0.1 0.006 94% 0.01
Mercury 0.006 0.000* 99+% 0.002
Endrin 0.0008 0.000* 99%+ 0.0002
Lindane 0.011 0.0012 89% 0.004
Methoxychlor 0.32 0.0059 98% 0.1
Toxaphene 0.013 0.000* 99%+ 0.005
2,4-D 0.3 0.02 93% 0.1
Silvex (2,4,5-TP) 0.029 0.004 86% 0.01
* - Below detectable limit.
(1) - While this test shows a reduction in these contaminants, KDF is inconsistent in their removal in certain water conditions. We offer special nitrate and fluoride filters, or reverse osmosis, if removal is needed.

A separate test was run on another KDF/GAC cartridge to determine chlorine removal capacity. The challenge solution contained 3 mg/l chlorine (most cities use less than 1 mg/l). 2 mg/l lead was also added. At 20,000 gallons, both were being removed 99.9+%. The test was terminated at 28,400 gallons when the chlorine removal rate hit 90%. The lead removal was still 97.6%.

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Whole House Filters Giardia Safe Drinking Water
Replacement Items Lead in drinking water NSF-53 Protocol test results
Portable Water Filters Chlorine in drinking water Painting Supplies
Water Softeners Chlorination By-Products Water Chillers
Faucet Water Filters Pesticides in drinking water Fluoride Water Filters
Water Filters Cryptosporidium Home Water Filtration System