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  • Indiana: (877) 592-8187
  • Ebensberg: (877) 376-7084
  • Kittanning: (877) 376-0534
  • Greensburg: (724) 252-2789
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  • Indiana: (877) 592-8187
  • Ebensberg: (877) 376-7084
  • Kittanning: (877) 376-0534
  • Greensburg: (724) 252-2789

Monday-Friday 7:00am to 4:30pm

Monday-Friday 7:00am to 4:00pm

Indiana/Kittanning/Ebensburg
(877) 592-8187

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Greensburg
(724) 237-4076

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Menu
  • Current Customers
    • Request Service
    • Trade-in and Upgrade
    • Timer Manuals
    • Bypass Your Culligan Unit
    • Write a Review
    • Online Bill Pay
    • Route Calendar
  • Home
    • Test your Water
    • Water Filtration
    • Reverse Osmosis Water Benefits
    • Culligan Water Softeners
    • Salt-Free
    • Salt Delivery
    • Portable Exchange Service
    • Bottled Water
  • Business
    • Commercial and Industrial Water Treatment
    • Bottle-FreeĀ® Water Coolers
    • Bottled Water Delivery Services
    • Salt Delivery
    • Maintenance Agreements
    • Deionized Water
  • About
    • About Us
    • Why choose Culligan?
    • Why Rentals are Important
    • The Culligan Promise
    • Water News and Resources
    • Customer Reviews
  • Contact Us
  • Special Offers
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What does the Reverse Osmosis process take out of your water?

This chart provides estimates for reduction percentages for a few of the contaminants* that a Culligan Reverse Osmosis may remove.
Main Contaminants*
Aluminum 98%
Arsenic (total) 89%
Asbestos 99%
Bicarbonate 97%
Calcium 98%
Chloride 96%
Chlorine 99%
Chromate 92%
Chromium (III) 99%
Copper (II) 99%
Detergents 97%
Fluoride 98%
Lead 98%
Magnesium 98%
Manganese 97%
Mercury (II) 62%
Nitrate (as NO 3) 95%
Nickel 97%
Potassium 92%
Selenium (IV) 98%
Silicate 96%
Silver 98%
Sodium 97%
Sodium Bicarbonate 96%
Sodium Chloride 93%
Sodium Sulfate 98%
Sulfate 97%
TDS Total Dissolved Solids 97%
Zinc 99%
Other Contaminants
barium 97%
cadmium 99%
radium 97%
selenium 97%
strontium 97%
toluene 95%
benzene 83%
ortho-xylene 95%
ethylbenzene 95%
chlorobenzene 95%
p-dichlorobenzene 93%
1, 2-dichloropropene 95%
1, 1-dichloroethylene 86%
1, 1, 1-trichloroethane 93%
cis-1,3-dichloropropene 95%
TCE (trichloroethylene) 98%
PCE (tetrachloroethylene 95%
1, 1, 2, 2-tetrachloroethane 95%
trans-1, 2-dichloroethene 95%
1, 2-dichlorobenzene 95%
1, 2-dichloropropane 95%
1, 1-dichloroethane 95%
hexachlorobutadiene 95%
carbon tetrachloride 87%
EDB 99%
PCB’s 97%
DBCP 99%
Atrazine 97%
herbicides 97%
insecticides 97%
THMs (chloroform) 95%
Return to drinking water page
*These contaminants may not be present in your water.
*HE is the world's most efficient water softener when configured with proportional up-flow brining and Aqua-SensorTM
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Indiana Office:
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1749 Wilson Ave
Indiana, Pennsylvania 15701

145 Tollgate Hill Rd
Greensburg, Pennsylvania 15601

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